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There may be an issue with your DNS. &nbsp;It looks like tranquility.net may be blocking you as spam due to DNS. Go to <a href="http://www.dnsstuff.com" rel="ugc">www.dnsstuff.com</a>&nbsp;and run the free domain health check. It will check to see if you have dns issues. &nbsp;another site that does DNS checks is <a href="http://www.intodns.com" rel="ugc">http://www.intodns.com</a>
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There may be an issue with your DNS.  It looks like tranquility.net may be blocking you as spam due to DNS. Go to www.dnsstuff.com [http://www.dnsstuff.com] and run the free domain health check. It will check to see if you have dns issues.  another site that does DNS checks is http://www.intodns.com [http://www.intodns.com]

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It looks like DNSSTUFF.com isnt free anymore try intodns.com
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It looks like DNSSTUFF.com isnt free anymore try intodns.com

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Thanks for the comment. I went to intodns.com, I ran the domain health check as you recommended and it passed all of them. It appears that I don't have any DNS issues. Do you have another suggestion?
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Thanks for the comment. I went to intodns.com, I ran the domain health check as you recommended and it passed all of them. It appears that I don't have any DNS issues. Do you have another suggestion?

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Great, Thanks for your help.
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One of my users is trying to send an e-mail to the following domain&quot; tranquility.net&quot; in response we received the following error message &quot;The message cannot be delivered due to a configuration error on the server. Please contact your Administrator.<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;&nbsp;tranq1.tranquility.net #5.3.0 X-Unix; 73&gt;<br />
we don't use any unix servers in my company, we have an Exchange 2003 server and my user is using Outlook 2007 Pro. My question is &quot;is the problem on my end or on the recipients end? if the problem is on my side how can I fix it?<br />
I will aprreciate any suggestions.<br />
Thanks<br />

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One of my users is trying to send an e-mail to the following domain" tranquility.net" in response we received the following error message "The message cannot be delivered due to a configuration error on the server. Please contact your Administrator.
            < tranq1.tranquility.net #5.3.0 X-Unix; 73>
we don't use any unix servers in my company, we have an Exchange 2003 server and my user is using Outlook 2007 Pro. My question is "is the problem on my end or on the recipients end? if the problem is on my side how can I fix it?
I will aprreciate any suggestions.
Thanks


An e-mail  message can not be delivered to a unix server

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

Unix is a multitasking, multi-user computer operating system originally developed in 1969 at Bell Labs. Today, it is a modern OS with many commercial flavors and licensees, including FreeBSD, Hewlett-Packard’s UX, IBM AIX and Apple Mac OS-X. Apart from its command-line interface, most UNIX variations support the standardized X Window System for GUIs, with the exception of the Mac OS, which uses a proprietary system.