UNIX for Dummies Questions & Answers

I now know that I have to configure dns mx to actually be able to send email correctly to my mail.
I have the link(user guide) on how to do this :

Code:

http://bobcares.com/blog/?p=29

but where do I configure it? Is there a specific file for the configuration? I really don't understand this part.

A bit of clarification first: the MX record tells a mail server which IP(s) are responsible for receiving mail for a certain domain. If there's no mail server listening there, or if it's configured wrong, you'll still get no mail.

You have to configure the MX record in the authorative DNS server for your domain. How that's done depends on which one you use. For BIND you'd have to put a line like

Code:

your.domain IN MX ip.of.mail.server

or

Code:

mail.your.domain IN A ip.of.mail.server
your.domain IN MX mail.your.domain

in the appropriate zone file & reload the configuration.