Hi there,
I have two mailcow instances: the first works properly for several years.
I have set up a new instance of mailcow as a backup mail server, but on this new instance the spam filter seems to not working properly…
For example, when a same mail is scanned on the two instance, I have on the first:
URIBL_BLACK (7.5)BAYES_SPAM (4.5)FORGED_RECIPIENTS (4)BAD_REP_POLICIES (2)IP_REPUTATION_SPAM (1.623265)MID_RHS_NOT_FQDN (0.5)RCVD_NO_TLS_LAST (0.1)
and on the new instance:
BAYES_SPAM (4.5) [100.00%] AUTH_NA (1) MID_RHS_NOT_FQDN (0.5) MIME_GOOD (-0.1) RCVD_NO_TLS_LAST (0.1)
I know that rspamd needs to be trained, but I think there is a big difference between the two instances?
why the URIBL_BLACK
is found on the first instance and not in the second?
There is a log file to look or a config to adapt to resolve my issue?
Thanks in advance for your help!