I sent a batch of emails today as part of a
marketing campaign. I received several ND responses similar to this one
and was wondering if there is a way for me to determine the cause (real
addressee xxx'd out).
This is the mail system at host ezms1.ez-merchant-hosting.com.
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
<firstname.lastname@example.org>: host milter1.store.vip.mud.yahoo.com[184.108.40.206] said: 554
5.7.1 Command rejected (in reply to end of DATA command)
Reporting-MTA: dns; ezms1.ez-merchant-hosting.com
X-Postfix-Sender: rfc822; email@example.com
Arrival-Date: Tue, 25 Aug 2009 14:10:35 -0700 (PDT)
Final-Recipient: rfc822; firstname.lastname@example.org
Remote-MTA: dns; milter1.store.vip.mud.yahoo.com
Diagnostic-Code: smtp; 554 5.7.1 Command rejected