IceWarp EPOS Server – Release Notes (Version 14.2.0.14 including 14.2.0.13)

IceWarp EPOS Server – Release Notes

Version 14.2.0.14 incl. 14.2.0.13 | March 26, 2026

This release focuses on stability, performance, and numerous improvements in the core IceWarp Server. It combines improvements and fixes from build 14.2.0.13, highlighted below.
Several fixes address issues reported in production environments, including updated OpenSSL, processing of antispam for outgoing messages and improved features in the Exchange Active Sync protocol.

Administrator Impact Summary

New Features

• none

Improvements & Optimizations

Improvements included from 14.2.0.13:

• WEBCLIENT - Improved handling of the upload of two or more files with the same name.
• WEBCLIENT - Improved rule action to tag a matched email with a custom tag.
• WEBCLIENT - Reviewed handling of shared email to TeamChat to avoid a possible XSS.
• SERVER - Updated OpenSSL to a newer version.
• SERVER - Reviewed processing of antispam for outgoing messages for trusted IP's.
• EAS - Improved SmartForward and SmartReply in the Exchange ActiveSync protocol.

Fixed Issues

Critical Fixes

     Critical fixes included from 14.2.0.13:

• SERVER - Fixed an issue with losing event or task attachment.
• SERVER - Fixed an issue where the outage of the accounts database causes Control to copy the entire mail folder into an arbitrary user.

Other Fixes

• WEBCLIENT - Fixed an issue with updating or deleting an occurrence of a recurring event.
• 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.

Fixes included from 14.2.0.13:

• WEBCLIENT - Fixed a bug in opening an email as another email’s attachment.
• WEBCLIENT - Fixed various calendar issues, mostly occurrence/exception of recurring events.
• WEBCLIENT - Fixed a bug causing unfunctional quarantine reports on Windows servers.
• WEBCLIENT - Fixed accessing WebClient via the troubleshooting link.
• WEBCLIENT - Fixed an issue with adding the birth date year to contact details.
• WEBCLIENT - Fixed an issue with handling event invitations with attachments received from Google Workspace.
• WEBCLIENT - Fixed an issue of forwarding multiple emails as attachments at once.
• WEBADMIN - Fixed uploading .csv files while using Mozilla Firefox.
• SERVER - Fixed SPF validations for domains with many TXT records.
• SERVER - Fixed a bug causing the impossibility to send a user the activation keys or sending them with incorrect translation.
• SERVER - Fixed a bug of deleting group content while the group has been disabled in Active Directory.
• SERVER - Fixed an issue with saving login restrictions via WebAdmin.
• SERVER - Fixed an issue with generating the Jitsi certificate, causing Conference unavailability.
• SERVER - Fixed the generation of PDF file thumbnails on Windows servers.
• SERVER - Fixed a bug causing duplication of the public folder Inbox in the folder tree.

Security Updates

          Security updates included from 14.2.0.13:

• WEBCLIENT - Reviewed handling of shared email to TeamChat to avoid a possible XSS.
• SERVER - Updated OpenSSL to a newer version.

Breaking Changes & Deprecations

• none

Upgrade Notes

• Downtime required:Yes (service restart required)
• Estimated downtime:Up to 15 minutes when upgrading from 14.2.X
• Backup recommendation:Full configuration and data backup before upgrade
• Rollback supported:No

Compatibility & Configuration Notes

• No changes to default configuration values.
• Fully compatible with existing LDAP and Active Directory integrations.
• No changes to supported browsers for WebClient.

Support & Feedback

If you experience any issues after upgrading, contact IceWarp Support and reference IceWarp Server 14.2.0.14. Please include server version, operating system, database type and version and relevant logs when opening a support case.