Release Notes for Synology MailPlus

Synology MailPlus is a powerful webmail service with rich features. You can send and receive emails to and from any mail server and centrally manage all the incoming and outgoing emails. You can compose a beautifully formatted email with built-in stickers and text tools. MailPlus also provides the label and smart search functions to help you easily find and manage emails.

Version: 3.0.0-11648


(2022-11-22)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Compatibility & Installation

  1. This update is only available on DSM 7.1 and above.

What's New

  1. Supports nested contacts for selecting shared mailbox members or email recipients.
  2. Supports scheduling the delivery of an email.
  3. Supports S/MIME for email signing and encryption.
  4. Supports mail merge for sending personalized mass emails. (Learn more)
  5. Supports multiple signatures for different scenarios.
  6. Supports mail templates where content and images can be saved for quick composing.

Fixed Issues

  1. Fixed an issue where users without permission to Synology Contacts might be logged out when performing certain actions.
  2. Fixed an issue where users couldn't share mailboxes with a group that had the same name.
  3. Fixed an issue where event times in notification emails from Synology Calendar might be displayed wrongly.
  4. Fixed an issue where emails fetched via POP3 couldn't be properly filtered if users signed in to MailPlus with an account name containing Chinese characters.
  5. Fixed an issue where user signatures might be missing or reverted if the fetched SMTP information was incorrect.
  6. Minor bug fixes.

Version: 2.3.4-11455


(2022-07-12)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

  1. Fixed a security vulnerability.
  2. Minor bug fixes.

Version: 2.3.3-11454


(2022-06-07)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Compatibility & Installation

  1. MailPlus 2.3.3 can only be installed on Synology products running DSM 6.2.3-25423 or above.

Fixed Issues

  1. Fixed an issue where data on external mail servers could not be retrieved via POP3 if the MailPlus shared folder was moved to another volume.
  2. Fixed an issue where Calendar event times would be displayed incorrectly on invitation emails.
  3. Fixed an issue where inserted images might not be displayed on drafts.
  4. Fixed an issue where attachments with certain file names could not be downloaded from TNEF emails.
  5. Fixed an issue where HEVC or HEIC thumbnails would not be displayed when Advanced Media Extensions (AME) 2.0 was installed.
  6. Minor bug fixes.

Version: 2.3.2-11450


(2022-02-17)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Compatibility and Installation

  1. Updated to be compatible with DSM 7.1 Beta.

Fixed Issues

  1. Fixed an issue where POP3 might not fetch emails according to the set time when users chose to remove original emails from the server.

Version: 2.3.1-11448


(2021-12-07)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

  1. Fixed an issue where users could not create or edit POP3 connections using methods other than IP addresses.
  2. Fixed an issue where email content might not be paginated properly when printed out.

Version: 2.3.0-11446


(2021-11-16)

What's New

  1. Supports moving emails from Sent to another mailbox.
  2. Supports creating sub-mailboxes under Inbox.
  3. Supports hiding Draft, Sent, Spam, and Trash.
  4. Supports nested labels.
  5. Enhanced email search function with drop-down menus in the search bar.
  6. Supports converting pasted images to inline images in case external images become invalid.
  7. Supports downloading attachments from a TNEF email.
  8. Updated the fetchmail version to 6.4, which supports POP3 fetching encrypted with TLS 1.2/1.3.
  9. Supports auto-forwarding to multiple recipients.
  10. Updated the OpenPGP version to v4.10.3.
  11. Supports using strikethroughs in the email composer.

Fixed Issues

  1. Fixed security vulnerabilities (CVE-2020-15953, CVE-2021-31597 and CVE-2021-32765).
  2. Fixed security vulnerabilities regarding OpenSSL (CVE-2021-3449, CVE-2021-3450, CVE-2021-3711, and CVE-2021-3712).
  3. Fixed an issue where images in a plain text email were not displayed as attachments.
  4. Fixed an issue where a draft written on a third-party client couldn't be sent via MailPlus when the SMTP sender's email address was in a different letter case than the one stored in the client.
  5. Fixed an issue where users might not be able to create a mailbox with the name of a deleted mailbox.
  6. Fixed an issue where the invitation information was not updated accordingly when the first occurrence of a repeating event was edited in Synology Calendar.
  7. Fixed an issue where an MP4 video couldn't be played when opened in a new tab in Safari.
  8. Fixed an issue where email format would vary upon delivery if the text was copied from a Google Doc and pasted into a MailPlus draft.
  9. Fixed an issue where email format might vary when printed out.
  10. Fixed an error that would occur when a user of the "administrators" group uploaded images from a private album of Photo Station on NAS to a MailPlus draft.
  11. Fixed an issue where email addresses containing Punycode couldn't be set as SMTP senders.
  12. Fixed an issue where POP3 fetch couldn't be set up when the password of the POP3 account contained a double quote.
  13. Fixed an issue where emails within a certain time range couldn't be retrieved via POP3 fetch.
  14. Minor bug fixes.

Version: 2.2.1-11373


(2021-06-01)

Compatibility and Installation

  1. Updated to be compatible with DSM 7.0.

Version: 2.3.4-1455


(2022-07-12)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

  1. Fixed a security vulnerability.
  2. Minor bug fixes.

Version: 2.3.3-1454


(2022-06-07)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Compatibility & Installation

  1. MailPlus 2.3.3 can only be installed on Synology products running DSM 6.2.3-25423 or above.

Fixed Issues

  1. Fixed an issue where data on external mail servers could not be retrieved via POP3 if the MailPlus shared folder was moved to another volume.
  2. Fixed an issue where Calendar event times would be displayed incorrectly on invitation emails.
  3. Fixed an issue where inserted images might not be displayed on drafts.
  4. Fixed an issue where attachments with certain file names could not be downloaded from TNEF emails.
  5. Minor bug fixes.

Version: 2.3.2-1450


(2022-02-17)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

  1. Fixed an issue where POP3 might not fetch emails according to the set time when users chose to remove original emails from the server.

Version: 2.3.1-1448


(2021-12-07)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

  1. Fixed an issue where users could not create or edit POP3 connections using methods other than IP addresses.
  2. Fixed an issue where email content might not be paginated properly when printed out.

Version: 2.3.0-1446


(2021-11-16)

What's New

  1. Supports moving emails from Sent to another mailbox.
  2. Supports creating sub-mailboxes under Inbox.
  3. Supports hiding Draft, Sent, Spam, and Trash.
  4. Supports nested labels.
  5. Enhanced email search function with drop-down menus in the search bar.
  6. Supports converting pasted images to inline images in case external images become invalid.
  7. Supports downloading attachments from a TNEF email.
  8. Updated the fetchmail version to 6.4, which supports POP3 fetching encrypted with TLS 1.2/1.3.
  9. Supports auto-forwarding to multiple recipients.
  10. Updated the OpenPGP version to v4.10.3.
  11. Supports using strikethroughs in the email composer.

Fixed Issues

  1. Fixed security vulnerabilities (CVE-2020-15953, CVE-2021-31597 and CVE-2021-32765).
  2. Fixed security vulnerabilities regarding OpenSSL (CVE-2021-3449, CVE-2021-3450, CVE-2021-3711, and CVE-2021-3712).
  3. Fixed an issue where images in a plain text email were not displayed as attachments.
  4. Fixed an issue where a draft written on a third-party client couldn't be sent via MailPlus when the SMTP sender's email address was in a different letter case than the one stored in the client.
  5. Fixed an issue where users might not be able to create a mailbox with the name of a deleted mailbox.
  6. Fixed an issue where the invitation information was not updated accordingly when the first occurrence of a repeating event was edited in Synology Calendar.
  7. Fixed an issue where an MP4 video couldn't be played when opened in a new tab in Safari.
  8. Fixed an issue where email format would vary upon delivery if the text was copied from a Google Doc and pasted into a MailPlus draft.
  9. Fixed an issue where email format might vary when printed out.
  10. Fixed an error that would occur when a user of the "administrators" group uploaded images from a private album of Photo Station on NAS to a MailPlus draft.
  11. Fixed an issue where email addresses containing Punycode couldn't be set as SMTP senders.
  12. Fixed an issue where POP3 fetch couldn't be set up when the password of the POP3 account contained a double quote.
  13. Fixed an issue where emails within a certain time range couldn't be retrieved via POP3 fetch.
  14. Minor bug fixes.

Version: 2.2.1-1356


(2021-03-16)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

What's New

  1. Added new emojis.

Fixed Issues

  1. Fixed an issue where external images might open automatically before they were clicked.
  2. Fixed an issue where users might fail to download the correct file when they clicked the download link immediately after including original attachments in a response email.
  3. Fixed an issue where users could not open the mailbox after refreshing the page if all its emails were set in the priority mailbox.
  4. Fixed an issue where POP3 fetch might not resume after MailPlus Server restarts.
  5. Fixed an issue where images copied from one email in MailPlus to another might not display properly if the latter was sent using Google Chrome or the new Microsoft Edge.

Version: 2.2.0-1334


(2020-09-15)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Compatibility & Installation

  1. Contacts in Synology MailPlus will be automatically migrated to Synology Contacts upon package update.
  2. Synology MailPlus Server and Synology MailPlus require DSM 6.2 or above.

What's New

  1. Supports personal blacklist and whitelist to block spam emails sent from malicious senders and receive emails from trusted senders.
  2. Enhanced performance of expanding an email thread with multiple embedded pictures.
  3. Improved the login speed of Synology MailPlus.

  4. Supports expanding only the first and last messages in a conversation.

  5. Supports using strikethrough in the email composer.
  6. Added two fonts to the email composer: Open Sans and Roboto.

Fixed issues

  1. Fixed the issue where email attachments might not display properly when users replied to an email in a shared mailbox.
  2. Fixed the issue where emails from senders in the whitelist might be recognized as suspicious emails.
  3. Fixed the issue of garbled text in emails.
  4. Fixed the issue where external images might display automatically before users opened them.
  5. Fixed the issue where a long conversation might not display properly.
  6. Fixed the issue where the deletion of a shared mailbox resulted in slow performance.
  7. Fixed the issue where editing a draft might change the order of its attachments.
  8. Fixed the issue where only the first page of an email could be printed.
  9. Fixed the issue where UTF-8 email addresses might be converted when being saved to Synology Contacts.
  10. Fixed the issue where recipients were not separated by commas when users pasted multiple email addresses at a time.
  11. Fixed the issue where the package might fetch an incorrect account list when the LDAP server was unstable.
  12. Minor bug fixes.

Version: 2.1.3-1082


(2020-05-12)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed issues

  1. Fixed the issue where email images might not be displayed.
  2. Fixed the issue where the POP3 setup might fail owing to a slow connection to the server.
  3. Fixed the issue where HTML files might be downloaded as TXT files.
  4. Fixed the issue where users with wrong permissions might be stuck at the database upgrade when trying to sign in.
  5. Fixed the issue where users might fail to save drafts and the system might wrongly display insufficient space.
  6. Fixed the issue where emails could not be fetched via POP3 owing to inconsistent TLS settings.
  7. Fixed the issue where emails might not display attachments when users reply to a thread from the shared mailbox.
  8. Fixed the issue where the Contacts page might fail to open.
  9. Minor bug fixes.

Version: 2.1.0-1070


(2019-04-23)
  1. Supports turning off conversation view to show a single message in each email.
  2. Supports customizing display logo on web client.
  3. Supports displaying warnings on suspicious emails that failed SPF/DKIM/DMARC verification.
  4. Supports connecting only via a secure connection (SSL) to allow email retrieval from Outlook.com.
  5. Supports preventing users from changing the SMTP sender name.
  6. Supports displaying the mailbox information of the message.
  7. Added the option of hover action to quickly manage emails by moving the cursor over messages.
  8. Added the button "Add to Calendar task" to the toolbar.
  9. Added "First Page" and "Last Page" buttons to toolbar.
  10. Added "10 seconds" and "20 seconds" options to send cancellation period.
  11. Fixed an issue where some emails sent from the Outlook desktop client might not be displayed properly.
  12. Minor bug fixes.

Version: 2.0.7-0914


(2018-10-11)
  1. Fixed an issue where MailPlus might not show the "Attach file” button in the mail composer after upgrading to MailPlus 2.0.6.
  2. Fixed an issue where the time of invited events which were sent from Synology Calendar might not be displayed correctly.
  3. Fixed an issue where searching mails might fail when there are too many existing mailboxes.
  4. Minor bug fixes.

Version: 2.0.5-0910


(2018-08-14)
  1. Supports encrypting the content of push notification for new mails before sending it to third-party push notification servers.
  2. Supports displaying recipient information in Sent mailbox.
  3. Fixed an issue where groups including shared contacts might accidentally disappear.
  4. Minor bug fixes.

Version: 2.0.4-0906


(2018-06-25)
  1. Supports Thai user interface.
  2. Fixed an issue where contacts from external sources (e.g. Google Gmail) might be duplicated automatically and cannot be deleted.
  3. Minor bug fixes.

Version: 2.0.2-0899


(2018-04-18)
  1. Supports listing email addresses of shared contacts automatically according to contact frequency when entering the email addresses of sender/recipient. 
  2. Minor bug fixes.

Version: 2.0.1-0897


(2018-03-20)
  1. Fixed an issue where email content might fail to display after the Internet connection resumes.  
  2. Minor bug fixes. 

Version: 2.0.0-0892


(2018-03-14)
  1. Enhanced search speed for a large number of mailboxes.
  2. Supports search history and search operators in the search box.
  3. Supports message preview for replied mails during the send cancellation period.
  4. Supports downloading or forwarding mails in EML format.
  5. Supports selecting fonts for Chinese characters.
  6. Supports adding/importing contacts without email addresses.
  7. Supports copying images from MailPlus and pasting them to other composers or documents in different browsers. 
  8. Improved system stability.
  9. Minor bug fixes.

Version: 1.4.3-0744


(2018-02-05)
  1. Enhanced system stability. 

Version: 1.4.1-0742


(2017-12-29)
  1. Fixed a security vulnerability regarding MailSploit. (Synology-SA-17:82)
  2. Enhanced the format compatibility for tables copied from Microsoft Word.
  3. Fixed an issue where event invitation details from the Outlook desktop client cannot display in MailPlus under certain situations.

Version: 1.4.0-0735


(2017-11-23)
  1. Supports internationalized email address to send mails with or receive mails from email addresses in local languages (e.g. Chinese and Russian).
  2. Fixed an issue where mails might not be seen when moved from shared mailboxes to other mailboxes.
  3. Minor bug fixes.

Version: 1.3.4-0698


(2017-10-05)
  1. Enhanced the stability of high-availability clusters.
  2. Fixed an issue where memory leak might happen.
  3. Minor bug fixes

Version: 1.3.3-0695


(2017-09-12)
  1. Fixed an issue where mails in shared mailboxes might unexpectedly duplicate if the mail system is in high-availability cluster.
  2. Fixed an issue where the permission settings of shared mailboxes might not be synced between servers in high-availability cluster.

Version: 1.3.2-0689


(2017-07-27)
  1. Fixed an issue where large attachments from shared links cannot be downloaded.
  2. Fixed an issue where the message typeset might not display properly after emails are sent.
  3. Fixed an issue where the mail composer might close unexpectedly when replying emails in Priority Mailbox.
  4. Fixed an issue where creating mailboxes might fail if the names of mailboxes have existed before.
  5. Fixed an issue where deleting emails from the mail list might fail.
  6. Minor bug fixes.

Version: 1.3.1-0681


(2017-07-19)
  1. Enhanced stability of Priority Mailbox.
  2. Fixed an issue where mailboxes/labels might disappear after upgrade to MailPlus 1.3.0.
  3. Fixed an issue where a sent reply in a mail thread might appear unsent when the thread was reopened.
  4. Fixed an issue where MailPlus might not show the "Numbering” and “Bullets” buttons in the mail composer when running on DSM 6.1.2.

Version: 1.3.0-0676


(2017-07-19)

What’s New

    1. Supports sharing mailboxes with internal users.
    2. Added the Calendar Task plug-in for creating tasks from email content.  
    3. Supports browser notification for new messages in selected mailboxes or with specific labels.
    4. Supports inserting images and hyperlinks in the user signature.
    5. Added the “Chat now” and “Mail history” buttons in the contact information panel (Synology Chat should run on the same Synology NAS).
    6. When you reply to messages, the system will auto-select the replying email address where the message was received (with the corresponding SMTP option enabled in the Settings).
    7. Supports disabling auto-highlighter for date and time texts in email body.

Improvements

    1. Enhanced user interface performance.
    2. Improved speed of receiving, moving, and deleting emails.
    3. Enhanced package loading speed.

Fixed Issues

    1. Fixed an issue where disabled users might show up in shared contacts.
    2. Fixed an issue where incorrect message content might show up after a certain email thread was opened.
    3. Fixed an issue where attached .ics files might not show up.
    4. Fixed an issue where certain email content might not display properly.
    5. Minor bug fixes.

Version: 1.2.2-0520


(2017-03-09)
  1. Fixed an issue where emails sent from Outlook clients might not be quoted and collapsed properly.
  2. Fixed an issue where drafts with numerous recipients specified might not be editable after they were re-opened.
  3. Fixed an issue where single-message mails could not be archived.
  4. Minor bug fixes.

Version: 1.2.0-0516


(2017-01-10)

What’s New

  1. Supports creating events in Synology Calendar by clicking dates/times in mail (Synology Calendar should run on the same Synology NAS).
  2. Added Chat plug-in for instant conversation (Synology Chat should run on the same Synology NAS).
  3. Added priority mailbox to show emails from specific mailboxes or labels in one view.
  4. Enhanced overall performance.
  5. Supports converting large attachments to shared links to reduce mail size
  6. Allows administrator to edit contact group names in shared contacts.
  7. Allows administrator to enable/disable functions below for users:
    1. Creating events in Synology Calendar from dates/times
    2. Creating shared links for large attachments
  8. Added app launcher to open Synology collaboration packages: Chat, Calendar, and Office.
  9. Supports changing display language at Settings > General.
  10. Supports applying filter rules to POP3-fetched mails.
  11. Supports saving attachments to your Synology NAS.
  12. Supports regularly auto-deleting spam and trash mails before a specified time.
  13. Supports regularly auto-archiving mails in Inbox before a specified time.
  14. Supports highlighting matched text in keyword search.
  15. Supports marking selected text in “Quote” format in mail composition.

Fixed Issues

  1. Fixed an issue where auto-completing email addresses from Windows AD domain might not work.
  2. Fixed an issue where undoing a large number of moved or deleted mails might be slow.

Version: 1.1.2-0465


(2016-11-22)

What’s New

  1. After both MailPlus and MailPlus Server are updated, all the annual licenses will automatically turn into perpetual licenses with non-expired validity, and will be regulated under the new licensing plan. For more information, please visit here.
  2. Supports shared contacts from Windows AD domain or LDAP server.
  3. Allows the administrator to disable the OpenPGP encryption function.
  4. Supports syncing contacts from the following external sources: Google Gmail, Microsoft Outlook.com, Yahoo Mail, and CardDAV servers.

Fixed Issues

  1. Fixed an issue where MailPlus might send redundant notifications to the mobile app.
  2. Fixed an issue where POP3 mail fetching could not work for mailboxes named with Chinese characters.
  3. Fixed an issue where long quotations in email replies might not appear in full form.

Version: 1.1.1-0439


(2016-08-18)
  1. Added supported models: DS216+, DS216+II, DS713+, DS412+.
  2. Supports using contact information from Windows AD domain as shared contacts.
  3. Added the administrative option to disable OpenPGP.
  4. No push notifications will be sent for unread emails identified as Spam/Trash.
  5. Fixed an issue where certain SMTP servers could not be added to MailPlus.
  6. Minor bug fixes.

Version: 1.1.0-0413


(2016-06-30)

What’s new

  1. Supports push notification for Android/iOS MailPlus mobile app (Synology Application Service 1.0.0 or above required).
  2. Supports OpenPGP for email encryption and decryption.
  3. Supports designating a specific mailbox as the archived mailbox.
  4. Supports reordering filter priority.
  5. Supports changing display density in two-column view mode.
  6. Supports viewing attached documents with Document Viewer.

Improvements

  1. Optimized composer usability.
  2. Enhanced user interface performance.
  3. Enhanced system stability.

Fixed Issues

  1. Fixed an issue where the “@” sign could not be typed with an Italian keyboard.
  2. Minor bug fixes.

Version: 1.0-0369


(2016-04-21)

What's new

  1. Since the license mechanism and account management for MailPlus has started, please make sure you have enough valid licenses installed in MailPlus Server for the activated user accounts. Otherwise, the functions of MailPlus/MailPlus Server will be limited. For more information on MailPlus license mechanism, please check here.
  2. MailPlus is a powerful webmail service that provides rich features. The beautifully designed user interface and functionality help you work intuitively on your everyday email with efficiency.
  3. Organize your email with the physical mailboxes or assign multiple attributes onto the email by applying labels for an intuitive and convenient email management.
  4. Send and receive mail to and from other mail servers with the customizable SMTP service and POP3 fetch function.
  5. Find and manage your email efficiently with the smart search function.
  6. Filters automatically moves your incoming or outgoing email to the appointed mailbox or applies labels.
  7. Customize wallpaper and theme settings.
  8. Enrich your email content with the built-in stickers.
  9. With Synology Web Clipper, you can easily save the conversation in MailPlus to Note Station for management.
  10. Supports attaching files from DSM.
  11. Supports undo operation for Delete/Move/Archive/Set read & unread/Apply & remove label actions.
  12. Customize auto-reply messages for different senders.
  13. Supports browsing history.
  14. You can now auto-empty Spam/Trash mailboxes on logout.
  15. Clip long email messages to shorten loading time.
  16. List email addresses according to contact frequency when specifying the sender/recipient.
  17. Group contacts will be displayed when specifying the sender/recipient in the mail composer.
  18. Task progress will be displayed after setting up the filters.
  19. Supports keyboard shortcuts to view and manage messages more efficiently.

Limitation & Known Issues

  1. Initial retrieval of mail using the POP3 fetch function may take longer than usual.
  2. MailPlus is required to be installed on both Synology NAS devices to ensure the stability during the role switch between the primary and secondary servers.
  3. Both Synology NAS devices must have the identical MailPlus application portal and privilege settings to ensure stability during the role switch between the primary and secondary servers.

Version: 3.0.0-11648


(2022-11-22)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Compatibility & Installation

  1. This update is only available on DSM 7.1 and above.

What's New

  1. Supports nested contacts for selecting shared mailbox members or email recipients.
  2. Supports scheduling the delivery of an email.
  3. Supports S/MIME for email signing and encryption.
  4. Supports mail merge for sending personalized mass emails. (Learn more)
  5. Supports multiple signatures for different scenarios.
  6. Supports mail templates where content and images can be saved for quick composing.

Fixed Issues

  1. Fixed an issue where users without permission to Synology Contacts might be logged out when performing certain actions.
  2. Fixed an issue where users couldn't share mailboxes with a group that had the same name.
  3. Fixed an issue where event times in notification emails from Synology Calendar might be displayed wrongly.
  4. Fixed an issue where emails fetched via POP3 couldn't be properly filtered if users signed in to MailPlus with an account name containing Chinese characters.
  5. Fixed an issue where user signatures might be missing or reverted if the fetched SMTP information was incorrect.
  6. Minor bug fixes.

Version: 2.3.4-11455


(2022-07-12)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

  1. Fixed a security vulnerability.
  2. Minor bug fixes.

Version: 2.3.4-1455


(2022-07-12)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

  1. Fixed a security vulnerability.
  2. Minor bug fixes.

Version: 2.3.3-11454


(2022-06-07)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Compatibility & Installation

  1. MailPlus 2.3.3 can only be installed on Synology products running DSM 6.2.3-25423 or above.

Fixed Issues

  1. Fixed an issue where data on external mail servers could not be retrieved via POP3 if the MailPlus shared folder was moved to another volume.
  2. Fixed an issue where Calendar event times would be displayed incorrectly on invitation emails.
  3. Fixed an issue where inserted images might not be displayed on drafts.
  4. Fixed an issue where attachments with certain file names could not be downloaded from TNEF emails.
  5. Fixed an issue where HEVC or HEIC thumbnails would not be displayed when Advanced Media Extensions (AME) 2.0 was installed.
  6. Minor bug fixes.

Version: 2.3.3-1454


(2022-06-07)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Compatibility & Installation

  1. MailPlus 2.3.3 can only be installed on Synology products running DSM 6.2.3-25423 or above.

Fixed Issues

  1. Fixed an issue where data on external mail servers could not be retrieved via POP3 if the MailPlus shared folder was moved to another volume.
  2. Fixed an issue where Calendar event times would be displayed incorrectly on invitation emails.
  3. Fixed an issue where inserted images might not be displayed on drafts.
  4. Fixed an issue where attachments with certain file names could not be downloaded from TNEF emails.
  5. Minor bug fixes.

Version: 2.3.2-11450


(2022-02-17)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Compatibility and Installation

  1. Updated to be compatible with DSM 7.1 Beta.

Fixed Issues

  1. Fixed an issue where POP3 might not fetch emails according to the set time when users chose to remove original emails from the server.

Version: 2.3.2-1450


(2022-02-17)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

  1. Fixed an issue where POP3 might not fetch emails according to the set time when users chose to remove original emails from the server.

Version: 2.3.1-11448


(2021-12-07)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

  1. Fixed an issue where users could not create or edit POP3 connections using methods other than IP addresses.
  2. Fixed an issue where email content might not be paginated properly when printed out.

Version: 2.3.1-1448


(2021-12-07)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

  1. Fixed an issue where users could not create or edit POP3 connections using methods other than IP addresses.
  2. Fixed an issue where email content might not be paginated properly when printed out.

Version: 2.3.0-11446


(2021-11-16)

What's New

  1. Supports moving emails from Sent to another mailbox.
  2. Supports creating sub-mailboxes under Inbox.
  3. Supports hiding Draft, Sent, Spam, and Trash.
  4. Supports nested labels.
  5. Enhanced email search function with drop-down menus in the search bar.
  6. Supports converting pasted images to inline images in case external images become invalid.
  7. Supports downloading attachments from a TNEF email.
  8. Updated the fetchmail version to 6.4, which supports POP3 fetching encrypted with TLS 1.2/1.3.
  9. Supports auto-forwarding to multiple recipients.
  10. Updated the OpenPGP version to v4.10.3.
  11. Supports using strikethroughs in the email composer.

Fixed Issues

  1. Fixed security vulnerabilities (CVE-2020-15953, CVE-2021-31597 and CVE-2021-32765).
  2. Fixed security vulnerabilities regarding OpenSSL (CVE-2021-3449, CVE-2021-3450, CVE-2021-3711, and CVE-2021-3712).
  3. Fixed an issue where images in a plain text email were not displayed as attachments.
  4. Fixed an issue where a draft written on a third-party client couldn't be sent via MailPlus when the SMTP sender's email address was in a different letter case than the one stored in the client.
  5. Fixed an issue where users might not be able to create a mailbox with the name of a deleted mailbox.
  6. Fixed an issue where the invitation information was not updated accordingly when the first occurrence of a repeating event was edited in Synology Calendar.
  7. Fixed an issue where an MP4 video couldn't be played when opened in a new tab in Safari.
  8. Fixed an issue where email format would vary upon delivery if the text was copied from a Google Doc and pasted into a MailPlus draft.
  9. Fixed an issue where email format might vary when printed out.
  10. Fixed an error that would occur when a user of the "administrators" group uploaded images from a private album of Photo Station on NAS to a MailPlus draft.
  11. Fixed an issue where email addresses containing Punycode couldn't be set as SMTP senders.
  12. Fixed an issue where POP3 fetch couldn't be set up when the password of the POP3 account contained a double quote.
  13. Fixed an issue where emails within a certain time range couldn't be retrieved via POP3 fetch.
  14. Minor bug fixes.

Version: 2.3.0-1446


(2021-11-16)

What's New

  1. Supports moving emails from Sent to another mailbox.
  2. Supports creating sub-mailboxes under Inbox.
  3. Supports hiding Draft, Sent, Spam, and Trash.
  4. Supports nested labels.
  5. Enhanced email search function with drop-down menus in the search bar.
  6. Supports converting pasted images to inline images in case external images become invalid.
  7. Supports downloading attachments from a TNEF email.
  8. Updated the fetchmail version to 6.4, which supports POP3 fetching encrypted with TLS 1.2/1.3.
  9. Supports auto-forwarding to multiple recipients.
  10. Updated the OpenPGP version to v4.10.3.
  11. Supports using strikethroughs in the email composer.

Fixed Issues

  1. Fixed security vulnerabilities (CVE-2020-15953, CVE-2021-31597 and CVE-2021-32765).
  2. Fixed security vulnerabilities regarding OpenSSL (CVE-2021-3449, CVE-2021-3450, CVE-2021-3711, and CVE-2021-3712).
  3. Fixed an issue where images in a plain text email were not displayed as attachments.
  4. Fixed an issue where a draft written on a third-party client couldn't be sent via MailPlus when the SMTP sender's email address was in a different letter case than the one stored in the client.
  5. Fixed an issue where users might not be able to create a mailbox with the name of a deleted mailbox.
  6. Fixed an issue where the invitation information was not updated accordingly when the first occurrence of a repeating event was edited in Synology Calendar.
  7. Fixed an issue where an MP4 video couldn't be played when opened in a new tab in Safari.
  8. Fixed an issue where email format would vary upon delivery if the text was copied from a Google Doc and pasted into a MailPlus draft.
  9. Fixed an issue where email format might vary when printed out.
  10. Fixed an error that would occur when a user of the "administrators" group uploaded images from a private album of Photo Station on NAS to a MailPlus draft.
  11. Fixed an issue where email addresses containing Punycode couldn't be set as SMTP senders.
  12. Fixed an issue where POP3 fetch couldn't be set up when the password of the POP3 account contained a double quote.
  13. Fixed an issue where emails within a certain time range couldn't be retrieved via POP3 fetch.
  14. Minor bug fixes.

Version: 2.2.1-11373


(2021-06-01)

Compatibility and Installation

  1. Updated to be compatible with DSM 7.0.

Version: 2.2.1-1356


(2021-03-16)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

What's New

  1. Added new emojis.

Fixed Issues

  1. Fixed an issue where external images might open automatically before they were clicked.
  2. Fixed an issue where users might fail to download the correct file when they clicked the download link immediately after including original attachments in a response email.
  3. Fixed an issue where users could not open the mailbox after refreshing the page if all its emails were set in the priority mailbox.
  4. Fixed an issue where POP3 fetch might not resume after MailPlus Server restarts.
  5. Fixed an issue where images copied from one email in MailPlus to another might not display properly if the latter was sent using Google Chrome or the new Microsoft Edge.

Version: 2.2.0-1334


(2020-09-15)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Compatibility & Installation

  1. Contacts in Synology MailPlus will be automatically migrated to Synology Contacts upon package update.
  2. Synology MailPlus Server and Synology MailPlus require DSM 6.2 or above.

What's New

  1. Supports personal blacklist and whitelist to block spam emails sent from malicious senders and receive emails from trusted senders.
  2. Enhanced performance of expanding an email thread with multiple embedded pictures.
  3. Improved the login speed of Synology MailPlus.

  4. Supports expanding only the first and last messages in a conversation.

  5. Supports using strikethrough in the email composer.
  6. Added two fonts to the email composer: Open Sans and Roboto.

Fixed issues

  1. Fixed the issue where email attachments might not display properly when users replied to an email in a shared mailbox.
  2. Fixed the issue where emails from senders in the whitelist might be recognized as suspicious emails.
  3. Fixed the issue of garbled text in emails.
  4. Fixed the issue where external images might display automatically before users opened them.
  5. Fixed the issue where a long conversation might not display properly.
  6. Fixed the issue where the deletion of a shared mailbox resulted in slow performance.
  7. Fixed the issue where editing a draft might change the order of its attachments.
  8. Fixed the issue where only the first page of an email could be printed.
  9. Fixed the issue where UTF-8 email addresses might be converted when being saved to Synology Contacts.
  10. Fixed the issue where recipients were not separated by commas when users pasted multiple email addresses at a time.
  11. Fixed the issue where the package might fetch an incorrect account list when the LDAP server was unstable.
  12. Minor bug fixes.

Version: 2.1.3-1082


(2020-05-12)

Important Note

  1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed issues

  1. Fixed the issue where email images might not be displayed.
  2. Fixed the issue where the POP3 setup might fail owing to a slow connection to the server.
  3. Fixed the issue where HTML files might be downloaded as TXT files.
  4. Fixed the issue where users with wrong permissions might be stuck at the database upgrade when trying to sign in.
  5. Fixed the issue where users might fail to save drafts and the system might wrongly display insufficient space.
  6. Fixed the issue where emails could not be fetched via POP3 owing to inconsistent TLS settings.
  7. Fixed the issue where emails might not display attachments when users reply to a thread from the shared mailbox.
  8. Fixed the issue where the Contacts page might fail to open.
  9. Minor bug fixes.

Version: 2.1.0-1070


(2019-04-23)
  1. Supports turning off conversation view to show a single message in each email.
  2. Supports customizing display logo on web client.
  3. Supports displaying warnings on suspicious emails that failed SPF/DKIM/DMARC verification.
  4. Supports connecting only via a secure connection (SSL) to allow email retrieval from Outlook.com.
  5. Supports preventing users from changing the SMTP sender name.
  6. Supports displaying the mailbox information of the message.
  7. Added the option of hover action to quickly manage emails by moving the cursor over messages.
  8. Added the button "Add to Calendar task" to the toolbar.
  9. Added "First Page" and "Last Page" buttons to toolbar.
  10. Added "10 seconds" and "20 seconds" options to send cancellation period.
  11. Fixed an issue where some emails sent from the Outlook desktop client might not be displayed properly.
  12. Minor bug fixes.

Version: 2.0.7-0914


(2018-10-11)
  1. Fixed an issue where MailPlus might not show the "Attach file” button in the mail composer after upgrading to MailPlus 2.0.6.
  2. Fixed an issue where the time of invited events which were sent from Synology Calendar might not be displayed correctly.
  3. Fixed an issue where searching mails might fail when there are too many existing mailboxes.
  4. Minor bug fixes.

Version: 2.0.5-0910


(2018-08-14)
  1. Supports encrypting the content of push notification for new mails before sending it to third-party push notification servers.
  2. Supports displaying recipient information in Sent mailbox.
  3. Fixed an issue where groups including shared contacts might accidentally disappear.
  4. Minor bug fixes.

Version: 2.0.4-0906


(2018-06-25)
  1. Supports Thai user interface.
  2. Fixed an issue where contacts from external sources (e.g. Google Gmail) might be duplicated automatically and cannot be deleted.
  3. Minor bug fixes.

Version: 2.0.2-0899


(2018-04-18)
  1. Supports listing email addresses of shared contacts automatically according to contact frequency when entering the email addresses of sender/recipient. 
  2. Minor bug fixes.

Version: 2.0.1-0897


(2018-03-20)
  1. Fixed an issue where email content might fail to display after the Internet connection resumes.  
  2. Minor bug fixes. 

Version: 2.0.0-0892


(2018-03-14)
  1. Enhanced search speed for a large number of mailboxes.
  2. Supports search history and search operators in the search box.
  3. Supports message preview for replied mails during the send cancellation period.
  4. Supports downloading or forwarding mails in EML format.
  5. Supports selecting fonts for Chinese characters.
  6. Supports adding/importing contacts without email addresses.
  7. Supports copying images from MailPlus and pasting them to other composers or documents in different browsers. 
  8. Improved system stability.
  9. Minor bug fixes.

Version: 1.4.3-0744


(2018-02-05)
  1. Enhanced system stability. 

Version: 1.4.1-0742


(2017-12-29)
  1. Fixed a security vulnerability regarding MailSploit. (Synology-SA-17:82)
  2. Enhanced the format compatibility for tables copied from Microsoft Word.
  3. Fixed an issue where event invitation details from the Outlook desktop client cannot display in MailPlus under certain situations.

Version: 1.4.0-0735


(2017-11-23)
  1. Supports internationalized email address to send mails with or receive mails from email addresses in local languages (e.g. Chinese and Russian).
  2. Fixed an issue where mails might not be seen when moved from shared mailboxes to other mailboxes.
  3. Minor bug fixes.

Version: 1.3.4-0698


(2017-10-05)
  1. Enhanced the stability of high-availability clusters.
  2. Fixed an issue where memory leak might happen.
  3. Minor bug fixes

Version: 1.3.3-0695


(2017-09-12)
  1. Fixed an issue where mails in shared mailboxes might unexpectedly duplicate if the mail system is in high-availability cluster.
  2. Fixed an issue where the permission settings of shared mailboxes might not be synced between servers in high-availability cluster.

Version: 1.3.2-0689


(2017-07-27)
  1. Fixed an issue where large attachments from shared links cannot be downloaded.
  2. Fixed an issue where the message typeset might not display properly after emails are sent.
  3. Fixed an issue where the mail composer might close unexpectedly when replying emails in Priority Mailbox.
  4. Fixed an issue where creating mailboxes might fail if the names of mailboxes have existed before.
  5. Fixed an issue where deleting emails from the mail list might fail.
  6. Minor bug fixes.

Version: 1.3.1-0681


(2017-07-19)
  1. Enhanced stability of Priority Mailbox.
  2. Fixed an issue where mailboxes/labels might disappear after upgrade to MailPlus 1.3.0.
  3. Fixed an issue where a sent reply in a mail thread might appear unsent when the thread was reopened.
  4. Fixed an issue where MailPlus might not show the "Numbering” and “Bullets” buttons in the mail composer when running on DSM 6.1.2.

Version: 1.3.0-0676


(2017-07-19)

What’s New

    1. Supports sharing mailboxes with internal users.
    2. Added the Calendar Task plug-in for creating tasks from email content.  
    3. Supports browser notification for new messages in selected mailboxes or with specific labels.
    4. Supports inserting images and hyperlinks in the user signature.
    5. Added the “Chat now” and “Mail history” buttons in the contact information panel (Synology Chat should run on the same Synology NAS).
    6. When you reply to messages, the system will auto-select the replying email address where the message was received (with the corresponding SMTP option enabled in the Settings).
    7. Supports disabling auto-highlighter for date and time texts in email body.

Improvements

    1. Enhanced user interface performance.
    2. Improved speed of receiving, moving, and deleting emails.
    3. Enhanced package loading speed.

Fixed Issues

    1. Fixed an issue where disabled users might show up in shared contacts.
    2. Fixed an issue where incorrect message content might show up after a certain email thread was opened.
    3. Fixed an issue where attached .ics files might not show up.
    4. Fixed an issue where certain email content might not display properly.
    5. Minor bug fixes.

Version: 1.2.2-0520


(2017-03-09)
  1. Fixed an issue where emails sent from Outlook clients might not be quoted and collapsed properly.
  2. Fixed an issue where drafts with numerous recipients specified might not be editable after they were re-opened.
  3. Fixed an issue where single-message mails could not be archived.
  4. Minor bug fixes.

Version: 1.2.0-0516


(2017-01-10)

What’s New

  1. Supports creating events in Synology Calendar by clicking dates/times in mail (Synology Calendar should run on the same Synology NAS).
  2. Added Chat plug-in for instant conversation (Synology Chat should run on the same Synology NAS).
  3. Added priority mailbox to show emails from specific mailboxes or labels in one view.
  4. Enhanced overall performance.
  5. Supports converting large attachments to shared links to reduce mail size
  6. Allows administrator to edit contact group names in shared contacts.
  7. Allows administrator to enable/disable functions below for users:
    1. Creating events in Synology Calendar from dates/times
    2. Creating shared links for large attachments
  8. Added app launcher to open Synology collaboration packages: Chat, Calendar, and Office.
  9. Supports changing display language at Settings > General.
  10. Supports applying filter rules to POP3-fetched mails.
  11. Supports saving attachments to your Synology NAS.
  12. Supports regularly auto-deleting spam and trash mails before a specified time.
  13. Supports regularly auto-archiving mails in Inbox before a specified time.
  14. Supports highlighting matched text in keyword search.
  15. Supports marking selected text in “Quote” format in mail composition.

Fixed Issues

  1. Fixed an issue where auto-completing email addresses from Windows AD domain might not work.
  2. Fixed an issue where undoing a large number of moved or deleted mails might be slow.

Version: 1.1.2-0465


(2016-11-22)

What’s New

  1. After both MailPlus and MailPlus Server are updated, all the annual licenses will automatically turn into perpetual licenses with non-expired validity, and will be regulated under the new licensing plan. For more information, please visit here.
  2. Supports shared contacts from Windows AD domain or LDAP server.
  3. Allows the administrator to disable the OpenPGP encryption function.
  4. Supports syncing contacts from the following external sources: Google Gmail, Microsoft Outlook.com, Yahoo Mail, and CardDAV servers.

Fixed Issues

  1. Fixed an issue where MailPlus might send redundant notifications to the mobile app.
  2. Fixed an issue where POP3 mail fetching could not work for mailboxes named with Chinese characters.
  3. Fixed an issue where long quotations in email replies might not appear in full form.

Version: 1.1.1-0439


(2016-08-18)
  1. Added supported models: DS216+, DS216+II, DS713+, DS412+.
  2. Supports using contact information from Windows AD domain as shared contacts.
  3. Added the administrative option to disable OpenPGP.
  4. No push notifications will be sent for unread emails identified as Spam/Trash.
  5. Fixed an issue where certain SMTP servers could not be added to MailPlus.
  6. Minor bug fixes.

Version: 1.1.0-0413


(2016-06-30)

What’s new

  1. Supports push notification for Android/iOS MailPlus mobile app (Synology Application Service 1.0.0 or above required).
  2. Supports OpenPGP for email encryption and decryption.
  3. Supports designating a specific mailbox as the archived mailbox.
  4. Supports reordering filter priority.
  5. Supports changing display density in two-column view mode.
  6. Supports viewing attached documents with Document Viewer.

Improvements

  1. Optimized composer usability.
  2. Enhanced user interface performance.
  3. Enhanced system stability.

Fixed Issues

  1. Fixed an issue where the “@” sign could not be typed with an Italian keyboard.
  2. Minor bug fixes.

Version: 1.0-0369


(2016-04-21)

What's new

  1. Since the license mechanism and account management for MailPlus has started, please make sure you have enough valid licenses installed in MailPlus Server for the activated user accounts. Otherwise, the functions of MailPlus/MailPlus Server will be limited. For more information on MailPlus license mechanism, please check here.
  2. MailPlus is a powerful webmail service that provides rich features. The beautifully designed user interface and functionality help you work intuitively on your everyday email with efficiency.
  3. Organize your email with the physical mailboxes or assign multiple attributes onto the email by applying labels for an intuitive and convenient email management.
  4. Send and receive mail to and from other mail servers with the customizable SMTP service and POP3 fetch function.
  5. Find and manage your email efficiently with the smart search function.
  6. Filters automatically moves your incoming or outgoing email to the appointed mailbox or applies labels.
  7. Customize wallpaper and theme settings.
  8. Enrich your email content with the built-in stickers.
  9. With Synology Web Clipper, you can easily save the conversation in MailPlus to Note Station for management.
  10. Supports attaching files from DSM.
  11. Supports undo operation for Delete/Move/Archive/Set read & unread/Apply & remove label actions.
  12. Customize auto-reply messages for different senders.
  13. Supports browsing history.
  14. You can now auto-empty Spam/Trash mailboxes on logout.
  15. Clip long email messages to shorten loading time.
  16. List email addresses according to contact frequency when specifying the sender/recipient.
  17. Group contacts will be displayed when specifying the sender/recipient in the mail composer.
  18. Task progress will be displayed after setting up the filters.
  19. Supports keyboard shortcuts to view and manage messages more efficiently.

Limitation & Known Issues

  1. Initial retrieval of mail using the POP3 fetch function may take longer than usual.
  2. MailPlus is required to be installed on both Synology NAS devices to ensure the stability during the role switch between the primary and secondary servers.
  3. Both Synology NAS devices must have the identical MailPlus application portal and privilege settings to ensure stability during the role switch between the primary and secondary servers.