Proxmox Mail Gateway 9.1 is out with Debian 13.5, kernel 7.0, SpamAssassin 4.0.2, ClamAV 1.4.4, quarantine updates, and mail-flow hardening.
Patch Gravity SMTP CVE-2026-4020 and CVE-2026-4162, rotate WordPress mail-service credentials, and review sending logs after active attack reports.
Current PMG upgrade hub This is the current Fix I.T. Phill PMG upgrade hub. Use it with the official Proxmox Mail Gateway docs, and verify inbound/outbound mail flow, queues, spam scoring, TLS, quarantine, and DNS
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2026 PMG relay update This tutorial stays focused on Windows Server mail relay through Proxmox Mail Gateway. For current PMG stacks, confirm relay allowlists, TLS, connector/auth behavior, message tracking, and DNS records before putting production
2026 Proxmox Mail Gateway update For current deployments, pair this original PMG setup walkthrough with Proxmox Mail Gateway 9.x planning: verify DNS, TLS, relay permissions, spam policy, quarantine behavior, and queue flow before changing MX
