Microsoft KB Archive/282275

= XCON: MTA Stops Unexpectedly in CheckRecipInfo Because a &quot;DDA:&quot; String Is Embedded in Distinguished Name =

Article ID: 282275

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Exchange Server 5.5 Service Pack 4

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This article was previously published under Q282275





SYMPTOMS
The Exchange Server version 5.5 Service Pack 4 (SP4) message transfer agent (MTA) may stop unexpectedly with a call stack that is similar to the following:

FramePtr RetAddr   Param1   Param2   Param3   Function Name 0431f430 004b4ece  01e78f00 00000000 00000007 EMSMTA!CheckRecipInfo+0x7b 0431f474 00423d92  00000002 00000007 01eefce8 EMSMTA!TrackRecipInfo+0x103 0431ff24 00451bad  00000013 00000007 006955a8 EMSMTA!obpechve+0x48f 0431ff44 0043e89c  00000013 00000000 0431ff8c EMSMTA!otpirtcf+0x92 0431ff54 004a4cb4  00000013 00000024 000002f8 EMSMTA!otpixfok+0x66 0431ff8c 0046da1e  00000024 00000115 00000013 0x004a4cb4 0431ffb8 77f04ee8  00000013 00000024 00000115 EMSMTA!sbpiwbep+0x58 0431ffec 00000000  00000000 00000000 00000000 KERNEL32!BaseThreadStart+0x51

When the MTA stops, it logs an error message that is similar to the following:

Event ID: 9405

An unexpected error has occurred which may cause the MTA to terminate. Error: Access violation (0xc0000005) at Address 0x4b5e39 reading from 0x0. [BASE XFER-IN 20] (16)



CAUSE
This problem can occur if an Exchange Server 5.5 SP4 MTA on which message tracking is enabled attempts to process a message with a distinguished name that contains the following string:

DDA:



RESOLUTION
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Microsoft Exchange Server 5.5 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

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 typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

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

Component: MTA



WORKAROUND
To work around this problem, turn off message tracking to continue to process mail effectively.



STATUS
Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5 Service Pack 4.

Keywords: kbhotfixserver kbqfe kbbug kbexchange550presp5fix kbfix kbqfe KB282275

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