Author: R.Ringer (4 Feb 08 11:38am)
It seems like some (all?) spambots are not smart enough to find the IP for the Honeypot MX on a DNS that does not allow recursive lookups. My DNS log reports show a large number of lookups for mx5.mtaemail.com failing because it's not authoritative for the domain mtaemail.com and doesn't forward. On on one hand, it's nice to see so many attempts to send spam failing, but then again, the Honeypot isn't getting the data.
As a band-aid, I greated an in-domain A record with the IP address of mx5.mtaemail.com. I don't think this is really a good idea, but I couldn't come up with a better solution.