Proxmox Mail Gateway 6.1 veröffentlicht

Das Open-Source Mail Gateway von Proxmox, wurde vor kurzem in der Versoin 6.1 veröffentlicht. Das Update bringt folgende Neuerungen:

  • Support für Debian Buster 10.2
  • Support des Kernel 5.3 inkl. ZFS
  • Support für DomainKeys Identified Mail (DKIM)
  • neue Quarantäne für Dateianhänge
  • anpassbare Scores für SpamAssassin mittels GUI
  • verbesserte Handhabung für die Konfiguration von Regeln im cluster
  • noch Experimental ist das Feature “Before Queue”, das extra aktiviert werden kann

Proxmox Mail Gateway 6.1 Release Notes

  • Based on Debian Buster (10.2)
    • Proxmox Mail Gateway is based on the latest stable release of Debian 10.2 (Buster).
  • Updated SpamAssassin rules
  • Kernel 5.3
    • Proxmox Mail Gateway shares the kernel with Proxmox VE and is based on the 5.3 series from Ubuntu 19.10
  • DKIM-Signing
    • Support for adding DomainKeys Identified Mail (DKIM) Signatures (RFC 6376) to outbound emails
    • Configuration via GUI
    • Signing happens after processing the email with the rule system, thus ensuring that it leaves the Proxmox Mail Gateway with a valid signature
    • Flexible control of which domains should get signed with sensible defaults (the relay domains)
    • Inside a cluster, one common selector minimizes the overhead for adding required DNS entries
  • Attachment Quarantine
    • The Remove Attachments action can now optionally deliver the complete email to the Attachment Quarantine
    • The Attachment Quarantine offers a comfortable GUI for selectively downloading parts of the email for further analysis, or delivering the mail to the original recipient
    • Accessible only by the administrators, it offers safety from accidentally open malicious executables, doc-files, and other attachments infected with malware
  • Adjustable SpamAssassin Rule Scores via GUI
    • Adapt the scores of individual SpamAssassin rules directly in the GUI
    • Enables you to adapt the scoring to your environment, thus achieving better ham/spam detection rates
    • Mostly for adding a bit of weight to rules, which are good indicators for Spam in your environment
    • Selectively disable Rules, which cause false positives for your environment
  • Improved handling of Configuration and Rule changes in clustered environments
    • The Filtering Engine gets notified about a range of configuration changes which require a reload
    • The notification is propagated during the cluster sync
    • This reduces the situations where you had to manually restart pmg-smtp-filter
  • Experimental Support for Before Queue filtering
    • Proxmox Mail Gateway can now optionally reject an email during the SMTP dialogue, instead of accepting it and silently discarding unwanted email
    • This is a requirement in certain situations
    • By answering with a permanent failure code (554), there is no need to generate a Non-Delivery Report, which could cause your system to get blacklisted, due to Backscatter
    • Currently incompatible with the Tracking Center, thus needs to be explicitly enabled in /etc/pmg/pmg.conf
  • Improvements to general usability

Quelle: https://forum.proxmox.com/threads/proxmox-mail-gateway-6-1-released.60788/

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