We're having problems with open relay on Microsoft Exchange Server 2000. We tried to shut down SMTP, clean out queues, turn off relaying, etc., but nothing worked. For a quick fix, we set up a ...

Open mail relays—e-mail servers that allow third-party transmission of messages—are a significant contributing factor to the volume of unsolicited e-mail currently flying around the Internet. Spammers ...

I'm running I-Mail Server and have been blocked by one of the many anti-spam groups out there (yet none others, just this one, even though the guy assures me that my system is insecure and everyone ...