Alan J. Flavell wrote:
There are certain IPs which are registered via MX records for
hundreds, or thousands, of domains under the control of a spammer.
Some of these indeed seem to be operated by spammers who create new
domains on a production-line basis.
lookuphost:
driver = dnslookup
qualify_single = false
domains = ! +local_domains
ignore_target_hosts = 127.0.0.0/8 : CONFIG_DIR/bogon-bn-agg.txt \
: CONFIG_DIR/ignore_spammers
transport = remote_smtp
This not only prevents incoming mail from being accepted from them
(because "verify sender" is caused to fail as a consequence) - it also
causes any attempt by our users to communicate with these domains to
be treated as bogons and failed.
But that's a bit crude - it means that any attempt to communicate will
fall through that router, and be handled by the unknown_domain router,
which produces the report:
So I'm looking for a some way to disambiguate these reports. If we
stay with the same mechanism, I suppose we can insert an extra router
before the unknown_domains, which is only activated for IP entries in
the ignore_spammers list, and produces a more-appropriate error
report.
Wouldn't it be clearer to reject in your mail acl, on
$sender_host_address matching your file?
- Jeremy
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