We had used the spamhaus Zen combined list DNSBL for decades to reject
mail right at the incoming connection. Spamhaus changed their api, which
rendered it incompatible with the simple logic in the front end of
Courier's esmtpd (it can still handle a single Spamhaus list, just not
the Zen combined list).
Does anyone have experience with another dnsbl? Is any list
reliable/conservative enough to reject mail on the front end of an
esmtpd as spamhaus zen had been?
You will all probably just tell me to switch to Postfix (where
reject_rbl_client can be set to do the right thing).
--
Anthony Carrico
