today it seems like the RBL Pattern is broken, some E-Mails are getting blocked who are not on the Blacklist.
The team is working on a permanent fix for v9.7MR9, likely to be released towards the end of the year.
There are a number of ways to avoid the issue in the meantime:
- switching to a different DNS provider. We have mainly seen this with customers using Quad9.
- alternatively, you can set a DNS forwarding rule that would pass DNS requests for cbl.abuseat.org to a different DNS resolver
- Disabling recommended RBL checks will guarantee mail doesn't get unnecessarily rejected but may allow more spam through
So is this fixed in 9.709-3?
It works :)
by default we have quad9 dns