we are currently seeing high amounts of false positive blacklist hits, although none of the IPs is actually blacklisted.
SFOS 18.0.4 MR-4
here are a few examples, of IPs which not blacklisted but got rejected.
2021-10-14 11:53:51.020  H=smtp2.iwb.ch (iwb10.iwb.ch) [18.104.22.168]:36248 I=[x.x.x.x]:25 X=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256 CV=no F=<xxxx@xxx> rejected RCPT <jonathan.kunz@xxxxxx Sophos Anti Spam Engine has blocked this Email because the sender IP Address is blacklisted.
any one else ?
Update: it seems that the issue is resolved since around 1'o clock
I looks like it was the same issue as with the UTM plattform.
Hi Samuel Heinrich,
Thank you for reaching out to Sophos Community.
Are you using any custom RBLs? Please share a snapshot of the premium & standard RBL address group from Email > Address group.
Please don’t use cbl.abuseat.org as a custom RBL at present if you use public DNS.