Hi,
Emails sent to a few of our users are generating the following NDRs:
Delivery has failed to these recipients or distribution lists:
user@mydomain.com
Your message wasn't delivered because of security policies. Microsoft Exchange will not try to redeliver this message for you. Please provide the following diagnostic text to your system administrator.
The following organization rejected your message: mail.rollernet.us.
Diagnostic information for administrators:
Generating server: smtp1.ops.norvax.net
user@mydomain.com
mail.rollernet.us #<mail.rollernet.us #5.7.1 smtp; 554 5.7.1 <user@mydomain.com>: Recipient address rejected: SPF SoftFail (Mechanism '~all' matched)> #SMTP#
Original message headers:
Received: from app2.bo-prod.norvax.net (lb1-ext.prod.norvax.net [69.20.8.230])
by smtp1.ops.norvax.net (Postfix) with ESMTP id E9CED3E487;
Wed, 14 Sep 2011 14:14:00 -0500 (CDT)
Date: Wed, 14 Sep 2011 15:14:00 -0400
From: Xxxx Xxxx <user@senderdomain.com>
To: "user@mydomain.com" <user@mydomain.com>
Message-ID: <1519079182.23381316027640709.JavaMail.resin@app2.bo-prod.norvax.net>
Subject: Xxxxxxxxxxxxxxxxxx
MIME-Version: 1.0
Content-Type: text/plain
Any idea why this is happening?
NDR Received
Moderator: Moderators
Re: NDR Received
No way to tell, not enough information. The sender and recipients can't be redacted and we need full headers. It's obviously an SPF policy issue, but the only way to tell is by looking at the sender domain's SPF records and comparing it to the sender IP.
Seth Mattinen, Roller Network LLC