Added: A new default option and action for Folder Auto-clean to delete email based on "Time in Folder".
Changed: In Folder Auto-clean rules, the rule named "Age" was renamed to "Message Date", though its action remains the same.
Changed: On upgrade, existing Folder Auto-clean rules that use "Age" will be changed to "Time in Folder" and use the server upgrade date as the start date.
Changed: When sending messages with 8-bit transfer encoding, line lengths are now limited to 998 characters.
Efficiency: Significant memory reduction for messages with attachments and calendar invites.
Fixed: "No Items to Show" briefly shows on calendar Agenda view when visiting the calendar page for the first time.
Fixed: "Shared With Me" appears as an option in the Folder Auto-Clean rule Folder dropdown.
Fixed: Attachments in webmail do not always show the attachment indicator in the message list.
Fixed: Calendar Month, Week, and Agenda views may not span full browser height in Safari.
Fixed: Calendar, Task, Note, and Contact folder names are not displaying special characters correctly.
Fixed: Contact groups with a lot of entries do not show up correctly in webmail when syncing from Outlook (MAPI).
Fixed: Content Filters with conditions that contain special characters are not working properly.
Fixed: Email addresses may not be properly decoded when added to the acquaintances.json file.
Fixed: Forwarded emails that have inline attachments are delivered with the the attachment missing.
Fixed: Inserting HTML into a Froala editor may result in empty content when using a MacOS browser.
Fixed: NullReferenceException when importing a PST file into Outlook (MAPI).
Fixed: Outlook (MAPI) does not show CSV attachments.
Fixed: Scenario in which a message containing an attachment shows no attachment when forwarded from SmarterMail.
Fixed: Scenario in which replying to an email with a subject line using mixed encoding appears with garbled characters in webmail.
Fixed: Scenario in which some messages may not appear in the Sent Items folder.
Fixed: Scenario where some messages may not be delivered; logs show delivery starting and finishing, but nothing in between.
Fixed: Several scenarios where a new appointment start date does not match the recurrence rule for that date.
Fixed: Some messages are not properly encoded in webmail, Outlook Mobile (IMAP), Mac Mail (EWS), and iPhone Mail (EAS).
Fixed: Sorting by Subject in Tasks Grid View does not work.
Fixed: Spaces are getting added to outbound messages.
Fixed: Spam check details are not being written properly to HDR file.
Fixed: SpamAssassin is not properly scanning items if the header content types or subtypes are not in lowercase.
Fixed: User authentication with APOP fails if user email address includes plus addressing folders.
Fixed: Web interface "Unsupported Browser" warning is not loading in Internet Explorer 11.
Translations: Updated the Swedish translation file.