Can't receive email form default email address

[sansak]

Hello All,

My customer can't receive any email from his account.

My server name is ns1,ns2.aaa.com, when I add the new domain such as bbb.com with user bbb. DA will set up the default email account name bbb with the same passwd of DA account.

The problem is, I can use this email account 'bbb' to send out email to any people, but when people reply mail to bbb@bbb.com, I cant get any email.

The return message is
================================================
This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

bbb@aaa.com
================================================

Why it didn't sent to bbb@bbb.com?

[nobaloney]

Does bbb.com receive email? It doesn't have an mx record.

Without real information there's no way to help you.

Jeff

[sansak]

Yesss bbb.com can receive email and has mx record.

The problem is only the default email as the same username of this domain.

[scsi]

Check /var/log/exim/mainlog