Can't send mail to own domain

A little more information would be helpful, what mail server are you using? Are there any errors in /var/log/mail.log

odd, it works for me :)

Your mail system (postfix maybe?) may think it is authoritative for your domain, so it isn't bothering to do MX record lookups to deliver mail.

````
Mar 9 04:33:36 localhost sendmail[3644]: p29AXaTm003644: to=user@domain.com, ctladdr=user@domain.com (33/33), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30532, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (p29AXaab003645 Message accepted for delivery)

Mar 9 04:33:36 localhost sm-mta[3646]: p29AXaab003645: to=user@domain.com, ctladdr= user@domain.com(1000/33), delay=00:00:00, xdelay=00:00:00, mailer=local, pri=31003, dsn=2.0.0, stat=Sent
````

I actually do not have a mail server set up on this installation. (Though I do use sendmail and php mail for outgoing mail only).

You should probably follow one of these guides then

http://library.linode.com/email/exim/se … 0.04-lucid">http://library.linode.com/email/exim/send-only-mta-ubuntu-10.04-lucid

http://library.linode.com/email/postfix … 0.04-lucid">http://library.linode.com/email/postfix/gateway-ubuntu-10.04-lucid

(assuming you're using ubuntu lucid if not pick the relevant guide from the library)

Thanks for the links! I followed the first guide, and unfortunately I am still having the same issue. My username is the same as my email address, so email is being delivered to my user instead of being relayed externally. Any other ideas?

Edit /etc/exim4/update-exim4.conf.conf and set dc_other_hostnames='' then run update-exim4.conf and then /etc/init.d/exim4 restart