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 ...

Though users are still having trouble sending e-mail through Comcast's SMTP servers, the following settings seem to work for Microsoft Entourage and other e-mail clients: Receiving: 'Receiving account ...

Do you have some kind of intrusion detection with active blocking running on the network? Are connections to the SMTP server restricted (in the properties of the SMTP service)?