Typically refers to an email server (SMTP server) that is configured to deliver any incoming mail to another mail server. In the past, open relays (open relay servers) were common, but today, most ...

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 have a mail server up and running using Postfix. <P>I know that open realys are very bad news, however I have NO idea where my users will be logging into this from. They will not all be in a close ...

Ah, the joys of being all things to all people...<P>The non-profit I work for runs Exchange Server 5.0 as their mail system. Everything works reasonably well. Recently, folks started complaining that ...

Federal and state law enforcement agencies pledged to take an aggressive new approach to fighting spam: identifying "open relay" mail servers that serve as conduits for massive quantities of junk ...