I am following this guide on how to set up a mail server, Postfix, and one of the assumptions is that I should have an MX record for mail.mydomain.com
. Postfix Guide However, I only have an MX record for mydomain.com
, and when I try to DiG it, nothing appears.
I have set up everything, and it works, but it is a little bit alarming, I can telnet into localhost 25
and send an email from anybody with the command mail from: anybody@anywhere.com
, and it gets sent without incident. It also displays the recipients as undisclosed recipients
.
Do I need to somehow get an MX record for mail.mydomain.com
? If so, how do I do that?