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 relays on corporate networks are a contributing factor to the volume of unsolicited e-mail currently flying around the Internet—and the presence of such relays is often unbeknownst to the owners ...

The Open Relay Database, a tool e-mail service providers used for years to help curb the spread of spam, is ceasing operations, a death partly attributable to its own success. It was 5. For years, ...

This list is a companion piece to the Secure Web server installation portion of SearchSecurity.com's Intrusion Defense School lesson on Web attack prevention and defense. Check out the companion ...

Last night, our ISP received a notice that our mail server had sent out spam. One DNS blacklist (Spamcannibal) also lists us as a spammer. As far as I can tell, either Spamcannibal notified the ISP, ...