postfix problems ~ loops back to myself

hy guest, i need your solution..

This mail.log my server.
Dec 16 10:04:12 okusi postfix/smtp[17781]: 3198510540C: to=<[email protected]>, relay=none, delay=0.07, delays=0.06/0/0/0, dsn=5.4.6, status=bounced (mail for mail.domain.tld loops back to myself)

any solutions?
I try to implemented 'Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Ubuntu 8.10)'

thank's before...


best regards
-------------
wevilsyadi

 

Please add mail.domain.tld to the mydestination line in /etc/postfix/main.cf and restart Postfix.