NDR message from email server, can't send
Posted on 2014-03-26
I have a weird problem with emailing out.
This problem happens to only one recipient, it just started happening today.
When we send emails to him, all reaches except one with attachment and 'credit card' on subject.
I seems like the recipient email server rejects based on their spam filtering, but the NDR message seems as it's actually from our email server(sending out).
Your message did not reach some or all of the intended recipients.
Subject: CREDIT CARD XXXXXXX XXXXX xXXXXXX
Sent: 3/26/2014 2:13 PM
The following recipient(s) could not be reached:
firstname.lastname@example.org on 3/26/2014 2:13 PM
The recipient could not be processed because it would violate the security policy in force
<mail.mydomain.com #5.7.0 smtp;550 5.7.0 Local Policy Violation>
As you see, the NDR message says " <mail.mydomain.com #5.7.0 smtp;550 5.7.0 Local Policy Violation>" which seems as the problem was from our side.
We use GFI mailessential + exchange server 2003 std