It's kind of tricky to treat VBA macros & encrypted files as viruses... PMG sees those as SPAM no matter what; you can assign a custom score to them, and then apply some rules for blocking, but it's not a nice solution...
But the worse is that PMG rules are all performed post-queue, that means you can't just reject mail on conditions like viruses, macros, RBL during the SMTP transaction (code 550)
sure, you can optionally enable "Send NDR on Blocked E-Mails", but then the burden of sending the NDR belongs to PMG, and not the remote server (as it should)
knobbysideup@reddit
I've always used mimedefang on sendmail. But maintaining that isn't for everyone.
Have you considered https://www.proxmox.com/en/products/proxmox-mail-gateway/overview
ashramrak@reddit (OP)
So, I got a few complaints about PMG...
It's kind of tricky to treat VBA macros & encrypted files as viruses... PMG sees those as SPAM no matter what; you can assign a custom score to them, and then apply some rules for blocking, but it's not a nice solution...
But the worse is that PMG rules are all performed post-queue, that means you can't just reject mail on conditions like viruses, macros, RBL during the SMTP transaction (code 550)
sure, you can optionally enable "Send NDR on Blocked E-Mails", but then the burden of sending the NDR belongs to PMG, and not the remote server (as it should)
knobbysideup@reddit
Hence mimedefang on sendmail ;-)
ashramrak@reddit (OP)
Thank you for your feedback !
archontwo@reddit
Maybe consider migrating to iRedmail for consistent upgrade paths and robust backups.
ashramrak@reddit (OP)
I'll take a look, thanks