CAUSE
This problem may occur if your Exchange server tries to process an e-mail message in a scenario where both of the following conditions are true:
- The Exchange MTA must process a long string of alternate recipients for the e-mail message.
- The final alternate recipient for the e-mail message is a custom recipient. To send the message to the custom recipient, Exchange transports the message through the Microsoft Exchange Internet Mail Service.
For example, this problem may occur in a scenario that is similar to the following:
- You send an e-mail message to User1.
- User1 keeps a copy of the e-mail message and has User2 specified as an alternate recipient.
- User2 keeps a copy of the e-mail message and has User3 specified as an alternate recipient.
- User3 keeps a copy of the e-mail message and has User4 specified as an alternate recipient.
- User4 keeps a copy of the e-mail message and has User5 specified as an alternate recipient.
- User5 keeps a copy of the e-mail message and has User6@domain_name.com specified as an alternate recipient.
In this scenario, the MTA may quit unexpectedly when it tries to process the large address buffer.
RESOLUTION
Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
Prerequisites
This hotfix requires Exchange Server 5.5 Service Pack 4 (SP4).
Restart requirement
You must restart your computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any
other hotfixes.
File information
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
------------------------------------------------------------------
01-Aug-2001 17:02 41,325 Dbserver.sch
16-Sep-2002 15:49 88,248 Dsadap.xv2
16-Sep-2002 15:49 33,049 Edi.xv2
23-Jan-2004 19:25 5.5.2657.91 1,941,776 Emsmta.exe
23-Jan-2004 19:04 5.5.2657.91 69,904 Ems_rid.dll
13-Jun-2001 17:05 133,435 Infoplog.cfg
23-Jan-2004 19:05 5.5.2657.91 19,728 Maxapia.dll
23-Jan-2004 19:04 5.5.2657.91 12,048 Maxapiv1.dll
23-Jan-2004 19:27 5.5.2657.91 167,184 Mtacheck.exe
23-Jan-2004 19:05 5.5.2657.91 743,696 Mtamsg.dll
23-Jan-2004 19:05 5.5.2657.91 16,656 Mtaperf.dll
18-Aug-2003 19:03 5,621 Mtaperf.h
23-Jan-2004 19:05 52,082 Mtaperf.ini
23-Jan-2004 19:05 5.5.2657.91 16,656 Mtxapia.dll
23-Jan-2004 19:05 5.5.2657.91 11,536 Mtxapiv1.dll
16-Sep-2002 15:49 36,452 P2.tpl
13-Jun-2001 17:06 50,789 P2.xv2
17-Sep-2001 18:45 14,002 P42.tpl
16-Sep-2002 15:49 41,222 P772.tpl
16-Sep-2002 15:49 9,028 P772.xv2
29-Aug-2001 18:16 23,350 Rdi.xv2
23-Jan-2004 19:04 5.5.2657.91 322,320 X400om.dll
23-Jan-2004 19:04 5.5.2657.91 40,208 X400omv1.dll
16-Sep-2002 15:49 31,276 X500dap.tpl