Build 9777 (Oct 8, 2026)

Question asked by kevind - 10/9/2026 at 6:04 AM

Unanswered

Share your experience with this new build!

Changed: Improved path validation for domain configuration settings.
Fixed: [HA] Toggling the Legacy SOAP API in System Settings -> General gives a 403 error.
Fixed: A CardDAV synchronization issue when a contact resource ends with a slash.
Fixed: Attendees cannot accept changed recurring appointments made in UTC+1 Amsterdam using Outlook (MAPI).
Fixed: Clicking "Invite All to Appointment" on an email does not populate the attendee list on the new appointment.
Fixed: Remote Spam Assassin and Remote Rspamd dialog boxes point to the same help link.
Fixed: Secure connections could serve an incomplete SSL/TLS certificate chain in certain conditions.
Fixed: Users can't subscribe to a calendar URL link that points to an internal IP address.
Fixed: Windows installer continues to run after the install completes.
Efficiency: Improved Windows installer delays on install/upgrade for Windows 2025.
Security: A domain administrator's login tokens are rejected after the account is demoted.
Security: Fixed a domain alias permission issue affecting domain administrators.
Security: Fixed a privilege-escalation issue in system administrator Two-Factor Authentication.
Security: Hardened access checks around attached file removal.
Security: Hardened access checks for shared folders across domains.
Security: Hardened Docker images with the latest OS security patches.
Security: Hardened XSS validation in HTML sanitization.
Security: Protocol logins now reject an expired password until it is changed in webmail.
Security: Security and reliability improvements for administrator Event hooks.

6 Replies

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Gabriele Maoret - SERSIS Replied

10/9/2026 at 8:51 AM

Updated: The installation was faster than usual, even on Windows 2022.

Now we wait to see if there is any feedback, but I hope everything is okay.

Gabriele Maoret - Head of SysAdmins and CISO at SERSIS

Currently manages 7 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 6 on-premise for customers who prefer to have their mail server in-house)