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I was having problems sending mail through nested group then I created a mail enabled query based group. &nbsp;The problem ceased. &nbsp;Why did I have to do that?
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I was having problems sending mail through nested group then I created a mail enabled query based group.  The problem ceased.  Why did I have to do that?

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Hello Experts . &nbsp;My site has two servers &nbsp;both with windows 2003 server 64 bit. &nbsp;the domain controller is server 2 &nbsp;and the exchange server is server 1. &nbsp;So my problem is this. &nbsp;I created a distribution group - universal on server 2. &nbsp;And then created a mail enabled distribution group on server 2 using the same details. &nbsp;the new email address is there for design@netcon.co.zm<br />
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I can send to this address and the group members receive the mail &nbsp;from within the network. &nbsp;However external senders get the error message &nbsp;below when they send to that address. &nbsp;This distribution group was created the same way as another one - sale@netcon.co.zm. &nbsp;There is no problem with the second one. &nbsp;<br />
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<a href="https://filedb.experts-exchange.com/incoming/2008/11_w47/78742/exchange-error.txt" target="_blank" class="file-inline" title="error email from exchange server (3 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>exchange-error.txt</a>
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exchange-error.txt

Hello Experts .  My site has two servers  both with windows 2003 server 64 bit.  the domain controller is server 2  and the exchange server is server 1.  So my problem is this.  I created a distribution group - universal on server 2.  And then created a mail enabled distribution group on server 2 using the same details.  the new email address is there for design@netcon.co.zm

I can send to this address and the group members receive the mail  from within the network.  However external senders get the error message  below when they send to that address.  This distribution group was created the same way as another one - sale@netcon.co.zm.  There is no problem with the second one.  



universal distribution group failing to receive external mail

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

Email Protocols

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.