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What happened to the answer?
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If you click on the link the answer appears to be #44 now. &nbsp;It has the same title 550 Relaying is Prohibited.
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If you click on the link the answer appears to be #44 now.  It has the same title 550 Relaying is Prohibited.

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It would be helpful if we could actually see or find the answer to this thread. &nbsp;when you click on the link, it just gives you an unnumbered list, so how do I see the answer?
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It would be helpful if we could actually see or find the answer to this thread.  when you click on the link, it just gives you an unnumbered list, so how do I see the answer?

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I think this was the information in the old link - <br />
<br />
550 is a relay error, meaning that the machine you are trying to send from is not authorised to send through your smtp server. your router would not cause this error. this is an exchange issue. this Ip range that the client is on needs to be added to the trusted relay hosts. <br />
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have a look here at the exact error and how to fix it.. <br />
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<a href="http://msexchangeteam.com/archive/2006/12/28/432013.aspx" rel="ugc">http://msexchangeteam.com/archive/2006/12/28/432013.aspx</a>
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I think this was the information in the old link -

550 is a relay error, meaning that the machine you are trying to send from is not authorised to send through your smtp server. your router would not cause this error. this is an exchange issue. this Ip range that the client is on needs to be added to the trusted relay hosts.

have a look here at the exact error and how to fix it..

http://msexchangeteam.com/archive/2006/12/28/432013.aspx [http://msexchangeteam.com/archive/2006/12/28/432013.aspx]

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When sending an email to a specific account i'm getting this message back:<br />
<br />
The following recipient(s) could not be reached:<br />
<br />
&nbsp; &nbsp; &nbsp; 'joe schmo' on 5/12/2005 8:55 AM<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; There was a SMTP communication problem with the recipient's email server. &nbsp;Please contact your system administrator.<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;exch.domain.org #5.5.0 smtp;550 Relaying is prohibited&gt;<br />
<br />
Is it me or the other server?<br />
<br />
Thanx,<br />
Tiby
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When sending an email to a specific account i'm getting this message back:

The following recipient(s) could not be reached:

      'joe schmo' on 5/12/2005 8:55 AM
            There was a SMTP communication problem with the recipient's email server.  Please contact your system administrator.
            <exch.domain.org #5.5.0 smtp;550 Relaying is prohibited>

Is it me or the other server?

Thanx,
Tiby

550 Relaying is prohibited

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.