Cannot send local e-mails.

[Piotr <zaxonxp45@gmail.com>]

Hi,

When some process produces an error, then root should receive an e-mail. Instead I gets some error message forwarded to my gmail account (see below). What should I configure to make a local e-mails working?

Regards,
Piotr 

from: Mail Delivery Subsystem <mailer-daemon@googlemail.com>
to: zaxonxp45@gmail.com
Subject: Delivery Status Notification (Failure)

** Address not found **

Your message wasn't delivered to user@localhost.localdomain because the domain localhost.localdomain couldn't be found. Check for typos or unnecessary spaces and try again.



The response was:

DNS Error: 17728931 DNS type 'mx' lookup of localhost.localdomain responded with code NXDOMAIN
Domain name not found: localhost.localdomain