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check your smtp relay server settings and block anonymous access. check your ip address also if its blacklisted. <br />
<br />
<a href="http://mxtoolbox.com/blacklists.aspx" rel="ugc">http://mxtoolbox.com/blacklists.aspx</a>&nbsp;
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I have exchange server 2003 and its giving me all the time error in the log NDR:3030 and 5007 and 3018&gt; Please help me to solve it out how can i solve the errorThe Emails are being delayed frequently and users have to wait for a long time to make sure that the mails are reaching to the destinations outside our domain,<br />
<br />
with BR <br />
<br />
Elee Ednan <br />

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I have exchange server 2003 and its giving me all the time error in the log NDR:3030 and 5007 and 3018> Please help me to solve it out how can i solve the errorThe Emails are being delayed frequently and users have to wait for a long time to make sure that the mails are reaching to the destinations outside our domain,

with BR 

Elee Ednan 


MS Exchange Server 2003

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.