I use spamassassin on my server and had it set to include zen.spamhaus.org in its RBLList and SBLList.
Unfortunately not sure how many days ago, I stopped receiving emails. Today I found this in the logs on my system:
550 Mail from HELO mail.rollernet.us rejected because it Error: open resolver; https://www.spamhaus.org/returnc/pub/172.68.33.43
I removed zen.spamhaus.org from my settings and now receiving email again.
This has worked for a long time, but suddenly stopped. I checked my ip address against spamhaus.org and it says I'm listed in their Policy Blocklist (PBL) but I've probably been listed there all along.
Is this on your end? Is this something you should fix?
Thanks for any help.
spamhaus
Moderator: Moderators