sb: > Is there a good DNSWL we can use? > Is there a good DNSBL we can use?
Plenty, but the right choice of reputation service depends on your
requirements.
The postfix-users list is probably not the place to collect
authoritative "reputation" information about reputation lists, but
the lists from spamhaus.org are among the better DNS-based ones.
Note that they require a service account for non-trivial query
volumes.
Wietse
