XIMS: URL Not Formatted Properly in IMAP Referral Response (236788)

SYMPTOMS

If you connect to Transmission Control Protocol (TCP) port 143 on an Internet Mail Access Protocol (IMAP) server, and then attempt to log on to a different server, the logon request may be authenticated by the second server instead of the first. You may be logged on successfully, but in the response you receive, the trailing slash mark (/) is missing from the second server's uniform resource locator (URL). For example, the response may appear similar to the following:

OK [REFERRAL imap://server;AUTH=*domain] LOGIN completed

This URL is not compatible with Request for Comments (RFC) 2192, which indicates that the URL in an IMAP referral should be in the following format:

imap://server/

RESOLUTION

To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

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

Component: Information Store

File name	Version
Gapi32.dll	5.5.2639.0
Mdbmsg.dll	5.5.2639.0
Netif.dll	5.5.2639.0
Store.exe	5.5.2639.0

STATUS

Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 3.