IIS and SMTP - CDOSYS failing with cdoNTLM

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Author CDOSYS failing with cdoNTLM
Tony Proctor

2005-07-18, 7:51 am

I'm trying to change some code that uses CDONTS to use CDOSYS. However, I
tried to set cdoNTLM authentication and it fails with:

Run-Time Error '-214722095 (80040211)':
The message could not be sent to the SMTP server. The transport error code
was 0x80040217. The server response was not available.

As I understand, this setting uses the settings of the default identity in
Outlook Express. Obviously my OE settings work for OE, but I must be doing
something wrong here.

I've correctly set up the other config fields such as the cdoSMTPServer,
cdoSMTPServerPort, and cdoSendUsingMethod. These work OK if I select
cdoBasic authentication and specify an explicit username/password.

I put a network analyser on to see what SMTP messages were exchanged. There
didn't see to be any response at all to the "Username:", e.g.

220 c2bthomr03.btconnect.com ESMTP Mirapoint 3.5.8-GR; Mon, 18 Jul 2005
10:48:01 +0100 (BST)
EHLO tonyp
250-c2bthomr03.btconnect.com Hello dialup054.ts524.cwt.esat.net
[<ip>.<ip>.<ip>.<ip>], pleased to meet you
250-8BITMIME
250-SIZE 104857600
250-DSN
250-ETRN
250-AUTH LOGIN
250-AUTH=LOGIN
250 HELP
AUTH LOGIN
334 VXNlcm5hbWU6 = "Username:"

Can anyone help me here?

Tony Proctor


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