E-mail attachments may not be scanned by your antivirus software on an Exchange 2000 server (836728)


The information in this article applies to:

  • Microsoft Exchange 2000 Server

SYMPTOMS

An e-mail message that contains an attachment that must be scanned by your antivirus software may not be scanned before the e-mail message and the attachment are sent to the information store. This problem occurs on a computer that is running Microsoft Exchange 2000 Server.

CAUSE

This problem may occur if the content type of the attachment body part is changed to message\rfc822.

The attachment of different file types to an e-mail message requires the use of the MIME protocol. The MIME protocol defines different parts of the e-mail message and includes header fields that label the content of the fields. Depending on the content type of the attachment body part, the message is sent for antivirus scanning.

The content type may be changed if the MIME-based e-mail message is malformed. If the e-mail message is malformed, the e-mail message may not be recognized as a file that must be scanned by your antivirus program. Because the e-mail message is not scanned, a file that may be infected with a virus may be sent to the information store.

RESOLUTION

To resolve this problem, obtain the August 2004 Exchange 2000 Server Post-Service Pack 3 update rollup.

For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

870540 Availability of the August 2004 Exchange 2000 Server Post-Service Pack 3 update rollup

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel. 

Date         Time   Version            Size    File name
--------------------------------------------------------------
30-Jan-2004  01:50  6.0.6561.0      3,919,872  Cdoex.dll        
16-Dec-2003  01:01                     12,720  Ctrl_calendarview20.htc
16-Dec-2003  01:01                     91,631  Ctrl_calendarview20.js
30-Jan-2004  01:45  6.0.6561.0        856,064  Davex.dll        
30-Jan-2004  01:45  6.0.6561.0         53,248  Davexpc.dll      
30-Jan-2004  01:41  6.0.6561.0        131,072  Drviis.dll       
30-Jan-2004  01:42  6.0.6561.0        577,536  Dsaccess.dll     
30-Jan-2004  00:51  6.0.6561.0        184,320  Dscmsg.dll       
30-Jan-2004  00:51  6.0.6561.0        962,560  Emsmdb32.dll     
30-Jan-2004  01:44  6.0.6561.0      2,179,072  Ese.dll          
30-Jan-2004  01:44  6.0.6561.0         40,960  Eseperf.dll      
16-Dec-2003  01:06                      6,991  Eseperf.hxx
30-Jan-2004  01:44                    391,634  Eseperf.ini
30-Jan-2004  01:50  6.0.6561.0      3,575,808  Excdo.dll        
30-Jan-2004  01:41  6.0.6561.0         90,112  Eximap4.dll      
30-Jan-2004  01:42  6.0.6561.0        262,144  Exmime.dll       
30-Jan-2004  00:30  6.0.6561.0        176,128  Exnntp.dll       
30-Jan-2004  01:45  6.0.6561.0        143,360  Exodbesh.dll     
30-Jan-2004  01:45  6.0.6561.0         57,344  Exodbpc.dll      
30-Jan-2004  01:45  6.0.6561.0        200,704  Exodbprx.dll     
30-Jan-2004  01:45  6.0.6561.0      2,179,072  Exoledb.dll      
30-Jan-2004  01:39  6.0.6561.0         81,920  Exosal.dll       
30-Jan-2004  01:41  6.0.6561.0         32,768  Expop3.dll       
30-Jan-2004  01:42  6.0.6561.0         32,768  Exproto.dll      
30-Jan-2004  01:45  6.0.6561.0        307,200  Exprox.dll       
30-Jan-2004  00:55  6.0.6561.0        143,360  Exschema.exe     
30-Jan-2004  01:46  6.0.6561.0        331,776  Exsmtp.dll       
30-Jan-2004  00:57  6.0.6561.0        675,840  Exwform.dll      
30-Jan-2004  00:32  6.0.6561.0        180,224  Exwin32.dll      
30-Jan-2004  00:54  6.0.6561.0         40,960  Febecfg.dll      
30-Jan-2004  01:41  6.0.6561.0         32,768  Iisif.dll        
30-Jan-2004  01:43  6.0.6561.0        135,168  Iisproto.dll     
30-Jan-2004  01:43  6.0.6561.0         61,440  Imap4be.dll      
30-Jan-2004  00:57  6.0.6561.0        319,488  Imap4evt.dll     
30-Jan-2004  00:55  6.0.6561.0        126,976  Imap4fe.dll      
30-Jan-2004  01:41  6.0.6561.0        126,976  Imap4svc.dll     
30-Jan-2004  01:42  6.0.6561.0         40,960  Jcb.dll          
30-Jan-2004  00:31  6.0.6561.0         49,152  Mdbevent.dll     
30-Jan-2004  00:48  6.0.6561.0      2,289,664  Mdbmsg.dll       
30-Jan-2004  00:33  6.0.6561.0         32,768  Mdbrole.dll      
30-Jan-2004  00:51  6.0.6561.0        909,312  Mdbsz.dll        
30-Jan-2004  01:43  6.0.6561.0         24,576  Mdbtask.dll      
30-Jan-2004  00:30  6.0.6561.0        151,552  Nntpex.dll       
30-Jan-2004  01:38  6.0.6561.0         94,208  Peexch50.dll     
30-Jan-2004  01:39  6.0.6561.0        413,696  Phatcat.dll      
30-Jan-2004  01:41  6.0.6561.0         36,864  Pop3be.dll       
30-Jan-2004  00:57  6.0.6561.0        303,104  Pop3evt.dll      
30-Jan-2004  00:56  6.0.6561.0         24,576  Pop3fe.dll       
30-Jan-2004  01:39  6.0.6561.0         73,728  Pop3svc.dll      
30-Jan-2004  00:57  6.0.6561.0        163,840  Protomsg.dll     
30-Jan-2004  01:42  6.0.6561.0        532,480  Reapi.dll        
30-Jan-2004  01:46  6.0.6561.0        311,296  Resvc.dll        
30-Jan-2004  01:41  6.0.6561.0      4,673,536  Store.exe        
30-Jan-2004  00:57  6.0.6561.0      3,735,552  Wmtemplates.dll

Note Because of file dependencies, this hotfix requires Microsoft Exchange 2000 Server Service Pack 3 (SP3). For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

301378 XGEN: How to obtain the latest Exchange 2000 Server service pack

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article.

MORE INFORMATION

For more information, visit the following Microsoft Web site:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cdosys/html/_cdosys_about_simple_internet_rfc_822_messages.asp

Modification Type:MinorLast Reviewed:1/26/2006
Keywords:kbHotfixServer kbQFE kbQFE kbfix kbExchange2000preSP4fix kbbug KB836728 kbAudITPRO
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