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A new SMTP-protocol level spoofing attack was recently published: https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/ Proxmox Mailgateway uses postfix as it's mail transport agent, thus the fix for the vulnerability happens in postfix. postfix upstream details...

We have compiled a collection of best practices and recommendation for Proxmox Mail Gateway deployments on the project page: https://pmg.proxmox.com/wiki/index.php/Getting_started_with_Proxmox_Mail_Gateway It contains a few tutorials, and tips, collected from our great community and which we...

We just added a short Howto for creating a proxy exposing the end-user quarantine interface with nginx to the Proxmox Mail Gateway wiki: https://pmg.proxmox.com/wiki/index.php/Quarantine_Web_Interface_Via_Nginx_Proxy This can help in providing a more pleasant and comfortable experience for...

We've created a short HOWTO on setting up a recursive DNS Server on Proxmox Mail Gateway installations: https://pmg.proxmox.com/wiki/index.php/DNS_server_on_Proxmox_Mail_Gateway This should help achieving better spam detection results on larger installations processing many mails, by helping...