Microsoft KB Archive/836728

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

Article ID: 836728

Article Last Modified on 12/25/2006

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APPLIES TO


 * Microsoft Exchange 2000 Server Standard Edition

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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 &quot;Applies to&quot; section of this article.

Keywords: kbhotfixserver kbqfe kbqfe kbfix kbexchange2000presp4fix kbbug KB836728

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