I've just put Postfix up on my mail server, and I it seems to work, but I wanted to better understand the configuration debconf built for it, so I can tweak it if necessary. Is there anything for ...

Is there some way to configure POSTFIX to reject all connections from non-US IP addresses? I understand that this a clunky solution to a more serious issue (SPAM) but we need this solution now. We ...

Unless you're a sysadmin you don't generally have to worry that much about getting email delivered, you just hookup your GUI email client to your external email account and you're done. But what if ...

Learn how to set up Postfix to block forged e-mails. Originally, people tried to stop spam by blocking all e-mail from the domains from which the e-mail appeared to originate. To get around this ...