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06.23.2008 at 01:02PM PDT, ID: 23508901
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How do I prevent ATT from blocking email from my Microsft Exchange Server?

Asked by graystoneengineering in SBS Small Business Server, Exchange Email Server, Post Office Protocol 3 (POP3)

Tags: Microsoft, Exchange Server, 6.5.7226.0, ATT is blocking email from my Exchange Server, The message cannot be delivered due to a configuration error on the server. Please contact your Administrator._

I cannot send email messages to my client who has a prodigy.net address.  I get the following message after sending the email:  Your message did not reach some or all of the intended recipients.

      Subject:      Test Message
      Sent:      6/23/2008 2:39 PM

The following recipient(s) could not be reached:

      Tony Miranda on 6/23/2008 2:38 PM
            The message cannot be delivered due to a configuration error on the server. Please contact your Administrator.
            <graystone.pro #5.3.0 smtp;553 5.3.0 flpi132 - m5NJbuog007705, DNSBL:521< 68.16.219.193 >_is_blocked.__For_information_see_http://att.net/blocks>

I am using Outlook 2003 and Microsoft Small Business Server 2003.  My ISP is ATT.  Our domain graystone.pro is hosted by 1&1.  I connect to the POP3 accounts there and route them through Exchange.Start Free Trial
Attachments:
 
Exchange-Server-Settings.bmp (572 KB) (File Type Details) 
Exchange SMTP Connector
Exchange SMTP Connector
 
 
Exchange-Server-Settings-2.bmp (621 KB) (File Type Details) 
Exchange POP3 Connector
Exchange POP3 Connector
 
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[+][-]06.25.2008 at 01:39AM PDT, ID: 21863659

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[+][-]06.25.2008 at 07:26AM PDT, ID: 21865943

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About this solution

Zones: SBS Small Business Server, Exchange Email Server, Post Office Protocol 3 (POP3)
Tags: Microsoft, Exchange Server, 6.5.7226.0, ATT is blocking email from my Exchange Server, The message cannot be delivered due to a configuration error on the server. Please contact your Administrator.<graystone.pro #5.3.0 smtp;553 5.3.0 flpi132 - m5NJbuog007705, DNSBL:521< 68.16.219.193 >_
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Solution Provided By: Chris-Dent
Participating Experts: 2
Solution Grade: A
 
 
[+][-]06.25.2008 at 08:31AM PDT, ID: 21866761

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[+][-]06.25.2008 at 08:39AM PDT, ID: 21866858

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