Linux Administration Cookbook

How to do it...

Post-installation, let's quickly test what the mail server looks like out of the box.

Starting by sending an example mail:

$ mail -s "Example Subject" [e-mail]: This is another piece of example mail.In this case we need to end with Ctrl-D.Like so!$ 

If we now run mail again, we'll see our bounced message:

$ mail"/var/mail/vagrant": 1 message 1 new>N 1 Mail Delivery Syst Wed Dec 5 17:46 56/1737 Mail delivery failed: returnin? 

Again, hitting 1 and Enter will load the first message:

Here, we actually get the helpful message Mailing to remote domains not supported as the server in question is incapable of doing so.