i get this message from firstname.lastname@example.org
This is the mail system at host softwareinc.info.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to <postmaster>
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
<email@example.com> (expanded from <firstname.lastname@example.org>): mail for
mail.softwareinc.info loops back to myself
Final-Recipient: rfc822; email@example.com
Diagnostic-Code: X-Postfix; mail for mail.softwareinc.info loops back to myself
Fyi, sofwareinc.info is my main domain on ubuntu server, why i get this error?
thanx for all response