FIX: ERR Msg: Failed to Perform MAPI Logon (187799)
The information in this article applies to:
- Collaboration Data Objects (CDO) 1.21
- Collaboration Data Objects (CDO) 1.1
- Collaboration Data Objects (CDO) 1.2
- Microsoft Exchange Server 5.5
This article was previously published under Q187799 SYMPTOMS
When you attempt to log into the Outlook Web Access client using an SMTP
recipient address and specify the full SMTP address in the login box, the
following error may occur:
Failed to Perform MAPI Logon.
Attempting to login a second time with this SMTP address may cause the
Internet Information Server (IIS) or Outlook Web Access (OWA) server to
crash.
CAUSE
The MAPI and Collaboration Data Objects (CDO) profile names constructed
from the input SMTP address exceed the maximum characters allowed. This
only occurs with an extremely long SMTP name such as the one shown below,
where the Username is followed by the site, org and .com:
exlistuser@extremely.extralong.microsoft.com
STATUS
Microsoft has confirmed this to be a problem in the Microsoft products
listed at the beginning of this article. This problem has been corrected in
the latest U.S. service pack for Microsoft Exchange Server version 5.5. For
information on obtaining the service pack, query on the following word in
the Microsoft Knowledge Base (without the spaces):
| Modification Type: | Major | Last Reviewed: | 3/19/2004 |
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| Keywords: | kbbug kbfix kbQFE KB187799 |
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