OVH wants to shut down my IP because when a spammer sends a message to @ zx2c4.com, I then forward it to @gmail.com, and gmail.com sometimes rejects with 550, and then opensmtpd generates a spam message containing the original message back to the spammer, and OVH's spam filters then see this as spam, and flag me as the spammer.
I need some way of filtering the bounce messages through spamassassin, but not the other messages. Any suggestions?
