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.
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
2026 update: this was an old ImunifyAV/ClamAV cron noise issue we saw on a cPanel server in 2023. It appears to have been corrected in later Imunify releases, but the troubleshooting lesson is still useful:
