XADM: Messages Auto Forwarded to an Invalid Internet Address Appear to Create a Looping Message

ID: Q238429

The information in this article applies to:

Microsoft Exchange Server, versions 5.5, 5.5 SP1, 5.5 SP2

SYMPTOMS

Messages appear to be looping between Exchange Server and the Internet through the Internet Mail Service.

CAUSE

Messages auto forwarded to an invalid Internet address appear to create a looping message.

WORKAROUND

Have the user ensure that the auto forwarding rule contains a valid Internet address.

RESOLUTION

A feature has been added to Exchange Server to detect an RFC 821 FROM field and to not auto respond when a registry setting is set. The registry setting is a REG_DWORD registry key of Disable Auto Forward On Empty RFC821From.

The following two settings are available:

1-Disable Auto Forward
0-Enable Auto Forward

The feature is included in an information store fix that also requires directory build 2600 or later. This feature is available in the latest service pack for Exchange Server version 5.5. For additional information, please see the following article in the Microsoft Knowledge Base:

Q191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

The English version of this feature should have the following file attributes or later:

Component: Information Store

File name	Version
Store.exe	5.5.2647.0
Mdbmsg.dll	5.5.2647.0
Gapi32.dll	5.5.2647.0
Netif.dll	5.5.2647.0

This feature was first included in Exchange Server 5.5 Service Pack 3.

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.

Additional query words:

Keywords : exc55 exc55sp1 exc55sp2 EXC55SP3Fea
Version : winnt:5.5,5.5 SP1,5.5 SP2
Platform : winnt
Issue type : kbbug