Your mail message to the following address(es) could not be delivered.
This is a permanent error. Please verify the address(es) and try again.
<user@domain.com>:
child status 100...This message is looping: it already has my Delivered-To line. (#5.4.6)
The receiving email address is receiving mails from other accounts regularly ,but I am not able to send mail on it.
Please suggest me the solution.
Thanks