IceWarp Server Epos Update 3 Supported systems: Window Server (2019 or newer), Red Hat / Rocky Linux (8.8/9.2) Supported desktop applications: Outlook Sync (14.0.0 or newer), IceWarp Desktop Client (10.0 or newer) Supported mobile applications: IceWarp Mobile (4.0 or newer), IceChat Mobile (13.0.2 or newer), Authenticator (13.0.2 or newer) Build 8 (14.3.0.8) Release date: 2026-06-23 Changelog: * WebClient - Fixed an issue of missing backgrounds and logos in WebClient * Server - Fixed an issue of resolving target host in distributed domain and static routes ================================================================================ Build 7 (14.3.0.7) Release date: 2026-06-21 Changelog: * Server - Fixed multiple vulnerabilities to prevent targetted attack on IceWarp Server ================================================================================ Build 6 (14.3.0.6) Release date: 2026-06-18 Changelog: * WebClient - Fixed the text display issue when highlighted in Dark mode for the WebClient. * WebClient - Done identified a cross-site scripting vulnerability in the upload.php file due to insufficient input sanitization. * WebClient - Done: Fixed a vulnerability allowing cross-site scripting in the Teamchat invite feature. * WebClient - duplicate of WC-15355 * WebClient - Fixed the display issue where the complete body of certain emails was not shown, requiring a refresh or switching between emails for proper viewing. * WebClient - Fixed the issue where parent folders lost their names in the folder tree when a subfolder was shared with another user. * WebClient - Fixed the timezone offset issue when suggesting a new time for calendar invitations. * WebClient - Fixed the issue where a changed occurrence of a recurrent event was not recognized as accepted in the email invitation after the initial acceptance. * WebClient - Done: Implemented regular checks of account status to ensure sessions are terminated if the account is disabled. * WebClient - Added a clickable button next to the link in the location field during event creation in webmail. * WebClient - Improved the task creation process by automatically setting the start date to today for recurring tasks without a specified start date. * WebClient - Fixed the file upload functionality to ensure files are uploaded to the current folder instead of the default folder. * WebClient - Fixed the date/time picker error in the snooze email feature that caused the screen to blur without displaying a modal. * WebClient - Fixed the issue where replies incorrectly used a disabled alias as the MAIL FROM address. * WebClient - Improved the web client by enabling the rendering of dashboards directly, without using iframes. * Server - Fixed the issue preventing users from opening downloaded zip attachments on MacOS due to admin restrictions. * Server - Fixed an infinite loop error when generating file thumbnails in TeamChat. * Server - Fixed the problem where new emails returned zero bytes on fetch by ensuring they are fully indexed by the server before retrieval. * Server - Fixed the issue of emails getting stuck in the MDA queue on Windows servers by resolving the SMTP process block. * Server - Fixed the issue where the customer’s POP3 was not consistently downloading message content despite indicating new messages were available. * Server - Improved the email processing order to ensure DKIM signing occurs after content filters and header/footer modifications, enhancing email deliverability. * Server - Fixed the handling of UTF8 paths on Windows to prevent errors during backups and ensure successful archive creation. * Server - Fixed the issue with meeting invitations not being delivered to Microsoft 365 mailboxes in the hybrid IceWarp environment. * Server - Fixed the TeamChat/IM access issue for users affected after the upgrade to ensure all accounts can send messages and use the chat functionality. * Server - Added the ability to include multiple file extension masks on a single line in the Antivirus settings. * Server - Improved clarity by proposing the removal of Bayesian from AS due to its obsolescence. * OutlookSync - Fixed the Outlook crash by addressing the handling of encrypted delivery reports for digitally signed messages. * ActiveSync - Fixed the discrepancy in scheduled event times displayed between the mobile Calendar and Mail applications. ================================================================================ Build 5 (14.3.0.5) Release date: 2026-05-20 Changelog: * WebClient - Fixed an issue when users with permanent sessions cannot log in. ================================================================================ Build 4 (14.3.0.4) Release date: 2026-05-08 Changelog: * WebClient - Fixed an issue with managing custom favorite folders. * WebClient - Fixed an issue with unintended scrolling in compose window. * WebClient - Fixed a bug causing impossibility to expand distribution list, that has a space in its name. * WebClient - Fixed a bug, that adds weird due date to a task. * WebClient - Fixed a bug causing visibility of search results in the printed outouts. * WebClient - Added a new feature, where search in all folders returns also the results from Snoozed folder. * WebClient - Fixed a possible local file inclusion vulnerability. * WebClient - Fixed a possible cross site scripting. * WebClient - Fixed an issue with deleting contacts from trash. * WebClient - Fixed googla maps integration in calendar event window. * WebClient - Fixed a bug with adding a new attendee to already existing occurrence. * WebClient - Fixed behaviour of emails management while working with search results. * WebClient - Fixed an issue causing document version conflicts and data loss when quickly editing and closing files, leading to unsaved changes and temporary document lockups. * WebClient - Fixed a scenario where not all users were returned in the IM roster. * WebClient - Added option to search also in subfolders for the search folders. * WebClient - Fixed multiple calendar event editing issues. * WebAdmin - Fixed disabling of Marketplace module. * Server - Fixed an issue causing indeliverability of emails sent to Mailing lists or groups. * Server - Fixed an issue where outgoing antispam was always processed in 'Full' mode, even when 'Live! Only' was configured. The default value has changed to 'Live! Only' to prevent false-positive SPF matching for local SMTP sessions. * Server - Fixed displaying of quarantined messages in Remote Console. * Server - Fixed an issue where email attachments appeared split. * Server - Fixed unintended saving API variables in Remote Console. * Server - Improved greylisting management by adding automatic cleanup of expired sessions and a bulk deletion option. * Server - Improved delivery rules behaviour, if rule pointed to renamed or moved folder. * Server - Added new feature to display IMAP STATUS in LIST. * Server - mproved Remote Console behavior by disabling Header/Footer file selection buttons to prevent unintended use of local file dialogs. ================================================================================ Build 3 (14.3.0.3) Release date: 2026-04-08 Changelog: * WebClient - Fixed sending SMS from WebClient. * WebClient - Improved handling of upload two or more same named files. * WebClient - Fixed a bug of opening email as another emails attachment. * WebClient - Fixed mechanism of creating a guest account. * WebClient - Fixed an issue with updating or deleting an occurrence of a recurring event. * WebClient - Fixed a bug causing spontaneous layout changes. * WebClient - Improved storing of custom backgrounds - all the backgrounds are now being stored in default Background folder. * WebClient - Added search in emoji picker in email compose window. * WebClient - Fixed an issue with snoozing an event reminders. * WebClient - Changed keyboard shortcut for copying email - now it is Shift + C * WebClient - Fixed various calendar issues, mostly ocurrence/exception of recurring event. * WebClient - Improved loading of emails. * WebClient - Improved rule action to tag a matched email with custom tag. * WebClient - Improved handling of 'To' field for users in space with name. * WebClient - Fixed pinning of TeamChat posts. * WebClient - Fixed a bug causing unfunctional quarantine reports on Windows servers. * WebClient - Fixed keyboard shortcuts interactivity while focused in email body in email preview. * WebClient - Fixed an issue with handling event invitation with attachments received from Google Workspace. * WebClient - Added restriction to disable avatars. * WebAdmin - Fixed setting of SmartDiscover on domain level. * Server - Fixed an issue where outage of accounts databse causes Control to copy the entire mail folder into arbitrary user * Server - Reviewed DKIM signature handling for autoforwarded emails received internally to external recipients. * Server - Added a new feature allowing to mark user chats as unread. * Server - Fixed an issue with losing event or task attachment. * Server - Fixed SPF validations for domains with many txt records. * Server - Updated OpenSSL to a newer version. * Server - Reviewed processing of antispam for outgoing messages for truested IP's. * Server - Fixed a bug in saving email delivery rules with API. * Server - Added possibility to use asterisk sign for Black/Whitelisting domains. * Server - Fixed a bug causing impossibility to send a user the activation keys or sending it with incorrect translation. * Server - Improved security by disallowing plain HTTP connections, enforcing TLS usage, and strengthening authentication to prevent interception and unauthorized access. * Server - Fixed generating of pdf files thumbnails on Windows servers. * Server - Fixed a bug causing duplication of public folder inbox in folder tree. * Server - New feature: 7zip archiver replaced with libarchive. * Server - Improved remote console to not need OS administrator right. * Server - Improvement in remote console - added count of all synchonized devices via Active Sync. * ActiveSync - Improved SmartForward and SmartReply in Exchange ActiveSync protocol. ================================================================================ Build 2 (14.3.0.2) - IceWarp Cloud only Release date: 2026-02-18 Changelog: * WebClient - Improved loading of emails. * WebClient - Fixed accessing webclient via troubleshooting link. * WebClient - Improved Instant Messaging with adding "Last seen" time for offline contacts. * WebClient - Reviewed handling of shared email to TeamChat to avoid a possible XSS. * WebClient - Fixed an issue with missing original email body in email reply. * WebClient - Fixed an issue with adding birth date year to contact details. * WebClient - Fixed an issue with unselectable content in email preview subject. * WebClient - Improved deleting one occurrence instead of a whole recurrence in conference module. * WebClient - Improved handling of disabled accounts or domains with automatically disabling its sessions. * WebAdmin - Fixed uploading .csv files while using Mozzila Firefox. * Server - Fixed an issue when user wasn't able to work with fields in Spreadsheet in WebDocuments that were protected (locked) by himself. * Server - Reviewed loading of shared calendar folders with IMAP protocol. * Server - Fixed a bug of deleting groups content while group has been disabled in Active Directories. * Server - Fixed an issue with saving login restrictions via WebAdmin. * Server - Fixed an issue with generating Jitsi Certificate causing conference unavailability. * Server - Fixed migration of accounts database from SQLite to MySQL. * Server - Added a new feature - resources are now alphabetically sorted. ================================================================================ Build 1 (14.3.0.1) - IceWarp Cloud only Release date: 2026-01-18 Changelog: * WebClient - Fixed an issue with marking emails as read in shared accounts inbox. * WebClient - Improved handling of disabled accounts or domains with automatically disabling its sessions. * Server - Improved authorization to Remote Console. * Server - Fixed migration of accounts database from SQLite to MySQL. * Server - Fixed function "Delete older mails than". * OutlookSync - Added a new feature to enable the automatic sync from the context menu. ================================================================================ Initial Build (14.3.0.0) - not publicly available Release date: 2026-01-02 Changelog: * WebClient - Fixed an issue with read confirmation. * WebClient - Fixed an issue of forwarding multiple emails as attachments at once. * WebClient - Cross site scripting vulnerability has been addressed in WebClient * WebClient - Fixed showing of mailbox quota. * WebClient - Improved Search in All subfolders for documents. * WebClient - Improved Read/Unread mail visibility. * WebClient - Improved SMS password recovery. * WebClient - Fixed an issue where WebClient may got stuck in loading process. * WebClient - Fixed an issue of displaying emails with Buddha calendar. * WebClient - Fixed opening SmartAttach in message forwarding dialogue. * Server - Fixed migration of accounts database from SQLite to MySQL. * Server - Improved handling of calendar invitation replies. * Server - Fixed IMIP invitation causing bare LF. * Server - Critical vulnerability in File handling has been addressed * Server - Preventing random downloading of 0kB files via WebDAV protocol * Server - Fixed a bug causing stacking emails in outgoing queue. * Server - Fixed an issue with authorising to SMTP service. * Server - Fixed a bug causing impossibility to get new files in WebDav. * Server - Small changes in attendee's calendar event do not trigger "Prpose new time" action via CalDAV * Server - Improved search for GroupWare items. * Server - Fixed an issue with revalidating Conference certificate. * Server - Fixed an issue with regex header rewrite not working on MIME-encoded headers. * Server - Fixed an issue with sending invitations to newly added attendees after suppressed notifications. * Server - Fixed incorrect server response when online meeting is accepted. * Server - Fixed an issue with displaying public groups. * Server - Improved deleting of uploaded files, that have been attached and never used. * Server - Reviewed autoupdate of antivirus engine. * Server - Fixed a bug of importing events with different timezones. * Server - Fixed a bug with displaying only last added resource in Calendar. * Server - Improved handling of custom domain path for groups. * Server - Fixed an issue causing not syncing remote accounts. * Server - Fixed an issue where SpamAssassin incorrectly assigned RDNS_NONE due to missing PTR record queries. * Server - Reviewed usage of filesystem by POP3 module. * Server - Fixed a bug caused improperly displayed user list in WebDav. * OutlookSync - Added notification about new message in default Outlook notifications. * OutlookSync - Fixed AccessViolation Exception in IceWarp Outlook Sync after sync of new account. * OutlookSync - Improved support of non-standard ports in autodiscover.