Knowledge Base

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

Article ID: 153150

Article Last Modified on 10/28/2006

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

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