SMTP: Err Msg: ERROR Write: (1) (null) (99857)


The information in this article applies to:

  • Microsoft Mail Gateway to SMTP 2.1
  • Microsoft Mail Gateway to SMTP 3.0
This article was previously published under Q99857

SYMPTOMS

Versions 2.1 and 3.0 of Microsoft Mail Gateway to SMTP may display this error message:
"ERROR write: (1) (null)"
This error message indicates that the SMTP Gateway was unable to send packets to the SMTP router configured in the Admin program. It should be configured in this manner:

Gateway-SMTP-SETUP:

IP address of SMTP Router

CAUSE

This error message may appear if:
  • The SMTP router goes down.
  • The network between the SMTP gateway computer and the SMTP router is down.
  • A problem occurs in the TCP/IP on the gateway computer.

RESOLUTION

You can test these trouble points by trying to "telnet" to port 25 of the smarthost. Once this test is successful, the gateway will run. Send the message again. If the error occurs frequently, check the network with a protocol analyzer for problems.
Modification Type:MajorLast Reviewed:10/23/2003
Keywords:KB99857
©2003 Microsoft Corporation. All rights reserved.