SBS 2008 Exchange 2007 550 5.7.1 Unable to relay
Posted on 2011-02-28
I have an SBS 2008 Exchange 2007 server. The server is rejecting mail with an Unable to relay 550 5.7.1 error. The mail client we use us Outlook 2010.
I am not sure where to begin to resolve this, but I have an AE who is complaining like mad.
I have insured the DNS and rDNS is correct following demazter article and suggestions.
I can't seem to find anything on this in the knowledge base.
Below is the bounceback:
Hi. This is the qmail-send program at gateway05.websitewelcome.com.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.
18.104.22.168 does not like recipient.
Remote host said: 550 5.7.1 Unable to relay
Giving up on 22.214.171.124.
--- Below this line is a copy of the message.
Received: (qmail 21478 invoked from network); 25 Feb 2011 21:33:13 -0000
Received: from argenta.websitewelcome.com (126.96.36.199)
by gateway05.websitewelcome.com with SMTP; 25 Feb 2011 21:33:13 -0000
Received: from [188.8.131.52] (port=29827 helo=[192.168.1.102])
by argenta.websitewelcome.com with esmtpsa (TLSv1:AES128-SHA:128)
for firstname.lastname@example.org; Fri, 25 Feb 2011 15:36:37 -0600
From: John Mandelker <email@example.com>
Mime-Version: 1.0 (Apple Message framework v1082)
Content-Type: multipart/alternative; boundary=Apple-Mail-18-387529709
Subject: Re: Test Email
Date: Fri, 25 Feb 2011 15:36:33 -0600
To: Tom Gatti <firstname.lastname@example.org>
X-Mailer: Apple Mail (2.1082)
X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
X-AntiAbuse: Primary Hostname - argenta.websitewelcome.com
X-AntiAbuse: Original Domain - blacktwigllc.com
X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12]
X-AntiAbuse: Sender Address Domain - cutexbrands.com