PC Ext: Large Mail Message Fails with Windows NT and MMTA

- Microsoft Mail Multitasking Message Transfer Agent, version 3.2

SYMPTOMS

When you use the version 3.2 Microsoft Mail Multitasking Message Transfer Agent (MMTA) with Windows NT and Microsoft's NetWare Client Services, mail sometimes may not transfer on some large messages. The SYSTEM.LOG file will contain an entry similar to the following:

   System log entry on: 04-21-94 17:15
   External program has detected a mail problem.
   Failure queuing diagnostic data back to sender due to:
       External program has detected a mail problem.
   Message data:
     From: NETWORK/POSTOFFICE/*SPECIAL
     Date: 04-21-94
     Time: 17:09
     Subject: Downloaded Profs Names file for POSTOFFICE
   [005] Mail retry count exceeded sending to:
     NETWORK /USERNAME
   [018] Message was not sent due to missing attachment.

   The description for Event ID ( 8007 ) in Source ( NwRdr )
   could not be found. It contains the following insertion
   string(s): \Device\NwRdr, POSTOFFICE."

CAUSE

The Event ID (8007) is a time-out error. The MaxBurstSize registry entry for the NetWare client services must be set to zero (0) to eliminate this problem.

RESOLUTION

You can set the MaxBurstSize entry in the Windows NT registry by running REGEDT32.EXE and creating or editing the MaxBurstSize entry in the following location:

   HKEY_LOCAL_MACHINE
        SYSTEM
             CurrentControlSet
                   Service
                       NwcWorkstation
                            Parameters

1. From the Edit menu, choose Add Value.

2. In the Value Name field, type "MaxBurstSize" (without the quotation marks).

3. The default data type is REG_SZ. Change it to REG_DWORD.

4. Change the value of the key to 0.

MORE INFORMATION

The full text of the Event Id 8007 error is the following:

   Event Id 8007: The Microsoft client service for Netware redirector
   has timed out a request to <NetWare_server_name>.