Changelog Secure Mail Gateway

Cette page répertorie les modifications du Secure Mail Gateway (SMG) pour chaque version publiée sous forme d’image Docker relution/relution-smg-standalone sur Docker Hub. L’installation et la configuration sont décrites dans Installer Secure Mail Gateway →. Comme dans le Changelog Relution →, les entrées sont uniquement disponibles en anglais.


Versions disponibles

Version actuellement disponible via latest : 26.0.7 (au 22/10/2026).


Version 26.0.7

2026-10-22

Fixes
  • Important security fixes and hardening improvements [REL-14324]
  • Breaking change with SMG 26.0.7: The Secure Mail Gateway requires additional configuration when the Exchange server is reachable using a private IP address range (RFC 1918 →) [REL-14327]

Version 26.0.6

2026-09-17

Fixes
  • Incoming HTTP headers are now correctly treated as case-insensitive in all cases, which avoids potentially duplicated headers in the forwarded request [REL-13556]

Version 26.0.5

2026-08-20

New
  • Show more useful info about custom CA certificates added to the trust store [REL-12991]
  • Show more useful info when a connection is rejected due to an untrusted server certificate [REL-12991]
  • Basic HTTP exchange errors are now also visible when using HTTP/2 [REL-13245]
Updates
  • Native headers strategy is now the default [REL-12991]
  • Default HTTP post-size limit is now 1 GiB [REL-12991]
  • Premature transfer completion is now logged [REL-13245]
  • Log Exchange server’s status response code when a message is rejected [REL-13245]
  • Logs now show basic activity rather than nothing for successful transfers [REL-13245]
Fixes
  • The connection of a transfer that terminates prematurely is properly disposed [REL-13245]

Version 26.0.4

2026-08-04

Updates
  • Update code style to fix formatting issues when switching between projects [REL-14911]
  • Update publishing process to docker hub to meet latest security requirements [REL-14912]

Version 26.0.3

2026-07-10

Updates
  • Support for self-signed certificates and proxy settings [REL-12714]

Version 26.0.2

2026-06-30

Fixes
  • Fix wrongly handled 404 responses [REL-12560]

Version 26.0.1

2026-06-17

Updates
  • Expose health endpoint [REL-14913]

Version 26.0.0

2026-05-27

New
  • First version as a standalone service; the Secure Mail Gateway was previously part of the Relution server [REL-2856]