I'm trying to setup a Postfix server, but I can't seem to get the mailboxes configured correctly. Every time I try to test sending an email using telnet, I see errors in the Postfix logs.

Configure IT Quick: Set up a basic e-mail server with Postfix as the MTA Your email has been sent For all the apparent simplicity of e-mail, setting up a mail server is one of the most difficult ...

The server suddenly (just this afternoon) started refusing external email because our Barracuda is allegedly listed in zen.spamhaus.com (though checking the IP on the ...