Zmailer users, welcome to spamcop blacklist! :-( This is what spamcop admin writes: [...] >> The server is sending delivery failure notices to spamtrap addresses that >> feed our complaint database. A spamtrap is an unused address whose sole >> reason for existence is to see if people will send unsolicited mail to >> it. Spamtraps are basically the nonexistent addresses at small vanity >> domains owned by us or our associates. >> >> It's misdirected bounces that are causing the server to be listed. The >> bounces are being sent "delayed". Instead of refusing mail during the >> SMTP conversation, the server is accepting mail with forged headers and >> then later sending a bounce to what it thinks is the sender, but is in >> reality a forged return address. >> >> Until recently, spamcop has filtered out this sort of mail from being >> counted against a server for blocking purposes. However, spammers have >> begun to take advantage of the lenience, and started disguising their spam >> as bounces. As a result, we've been forced to stop ignoring unsolicited >> bounces caused by spammer forgery in order to protect our clients. >> >> Please reject mail during SMTP or else just drop it. Don't send bounces >> if you can't be sure you send them to the right person. >> >> http://www.spamcop.net/fom-serve/cache/329.html >> >> - Don - [...] Eugene
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