someone sent me an email but I didn't receive it this is what was in their log. Can't seem to find the documentation / explanation of the message
status=sent (250 2.7.0 Ok, discarded, id=24684-20 - BANNED: Index)
I did find the RFC explanation of the DSN=2.7.0 but can't figure the remainder of the message.
I have a qmail / spamd / clamd server and it’s recently started bouncing emails with a code 553. Spamhaus is sayings it’s an open relay problem on their message to the user. Has anyone come across this problem and how to configure it for qmail as the Spamhaus only has solutions for postfix/ others.
550 5.7.350 Remote server returned message detected as spam -> 553 Error: open resolver; https://www.spamhaus.org/returnc/pub/172.70.209.209
This is the message the user gets.