Microsoft KB Archive/153150

= XFOR: Err Msg: IMC The Following Recipient Couldn't Be Reached =

Article ID: 153150

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition
 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q153150



SYMPTOMS
When you send messages through the Internet Mail Connector (IMC), the following error message may appear:

The following recipient could not be reached. ..

This is followed by the e-mail address of the individual you were trying to reach.



CAUSE
If the Domain Name Service (DNS) administrator has used "wildcards" in the MX entry for a domain, the above error message appears.



RESOLUTION
Contact your DNS administrator (or your Internet service provider [ISP] if it is providing DNS).



MORE INFORMATION
In many instances, your ISP is also providing the Domain Name Service (DNS) resolution. This eliminates the need for smaller users to maintain their own DNS server. However, the problem described here may also occur if your DNS server is in-house.

Keywords: kbenv kbprb KB153150

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