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Q123826: SMTP: Err Msg: Error (116) Network Read Error

Article: Q123826
Product(s): Microsoft Mail For PC Networks
Version(s): MS-DOS:2.1,3.0
Operating System(s): 
Keyword(s): 
Last Modified: 30-OCT-1999

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The information in this article applies to:

- Microsoft Mail Gateway to SMTP, versions 2.1, 3.0 
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SYMPTOMS
========

Microsoft Mail Gateway to SMTP may display the following error message:

  Error (116) Network Read Error

CAUSE
=====

This error message appears if:

- An error at the TCP or IP layer has occurred.

- The other host has gone down.

- The network between the gateway computer and the other host has gone down.

- The other host may require that the PUSH flag be sent to push the SMTP packet
  up to the gateway instead of remaining in the incoming buffer.

If the error occurs frequently over time, check the network with a protocol
analyzer.

RESOLUTION
==========

You can test these possible causes by attempting to telnet to port 25 of the
smarthost and resending the message. This can usually be done by pressing
SPACEBAR and typing "25" (without the quotation marks) after the IP address on
the telnet command line.

If the error message appears frequently, check the network with a protocol
analyzer to determine the exact problem.

NOTE: Mail sent to IBM TCP/IP version 2, Release 2 may result in this error
message if the PUSH flag is not set. FTPs pc/TCP automatically sets the PUSH
flag for outgoing packets.

For Microsoft LAN Manager TCP/IP, ensure you are using the 2.2b version of the
file TCPTSR.EXE. By default, TCPTSR.EXE is found in
LANMAN.DOS\DRIVERS\PROTOCOL\TCPIP. The 2.2b version of TCPTSR.EXE is dated
2/1/94 and is 42716 bytes. Then, add the parameter ForcePushBit=1 to the [TCPIP]
section of the PROTOCOL.INI file. It defaults to 0, but when it is set to 1, it
causes the PUSH bit to be set on every outgoing packet.

Additional query words: 2.10 ERRMSG network error (116) smart host push flag

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Keywords          :  
Technology        : kbMailSearch kbMailGateSearch kbZNotKeyword3 kbMailGateSMTP300 kbMailGateSMTP210
Version           : MS-DOS:2.1,3.0

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