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my ussers cannot deliver to sbcglobal.net or prodigy.net<br />
<br />
NDR generated to recipients saying..<br />
<br />
Your message did not reach some or all of the intended recipients.<br />
Subject: &nbsp;blank<br />
Sent: date &amp;&nbsp;time <br />
The following recipient(s) cannot be reached: <br />
user@sbcglobal.ent on such date &amp;&nbsp;time<br />
<br />
The message cannot be delivered due to a configuration error on the server. <br />
Please contact your Administrator<br />
<br />
&lt;mydomain &nbsp;#5.3.0 smtp; 553 5.3.0 flpi095 - m99l6vr30128001, DNSBL :521&lt;208.70.119.240 &gt;_blocked. _For information_see_<a href="http://att.net/blocks" rel="ugc">http://att.net/blocks</a> &gt;<br />
<br />
when checking this code with att.net.. I did not see the match. Please help. <br />
<br />
We only filter incoming mails. . 
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my ussers cannot deliver to sbcglobal.net or prodigy.net

NDR generated to recipients saying..

Your message did not reach some or all of the intended recipients.
Subject:  blank
Sent: date & time 
The following recipient(s) cannot be reached: 
user@sbcglobal.ent on such date & time

The message cannot be delivered due to a configuration error on the server. 
Please contact your Administrator

<mydomain  #5.3.0 smtp; 553 5.3.0 flpi095 - m99l6vr30128001, DNSBL :521<208.70.119.240 >_blocked. _For information_see_http://att.net/blocks >

when checking this code with att.net.. I did not see the match. Please help. 

We only filter incoming mails. . 

NDR - # 5.3.0 smtp; 553 5.3.0

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.