SMTP NTLM AUTH problems (fairly techy)

[Guest Marzbar]

OK, so I want to be able to send email through a work server since when I connect to the work LAN all other SMTP traffic is blocked. However to send email from outside the network I need to authenticate and the AUTH must be NTLM.

This never worked on my sp5 but I wasn't that bothered - I only really used it to read email anyway - but now I have my vario I'd like to be able to send too. Unfortunately it still doesn't work so I thought I'd do a bit of investigation... I set up my own sendmail server with NTLM auth, which works fine with Outlook and Thunderbird, then pointed my phone at it. It still fails, so I did a tcpdump and I find that the phone's auth mechanism appears to be broken.

What happens in an ESMTP session with thunderbird is basically

> EHLO hostname

< 250-tosh Hello hostname [MyHostIP], pleased to meet you

[ then the list of supported codes ]

> AUTH NTLM [long string]

< 334 [another long string]

> [even longer string!]

< 235 2.0.0 OK Authenticated

> MAIL FROM [email protected]

You get the picture - from then on it's a standard SMTP session.

Now what happens in the ESMTP session with the phone is:

> EHLO Inbox

< 250-tosh Hello [MyPhonesIP], pleased to meet you

[ then the list of supported codes ]

> AUTH NTLM [long string]

< 334 [another long string]

> MAIL FROM [email protected]

< 501 5.5.4 cannot decode AUTH parameter MAIL FROM:

It's fairly obvious what's wrong here - we're missing the final auth response to the server's challenge (the "[even longer string!]" bit). Is there something I'm missing here, am I being stupid?

Has anyone else managed to get NTLM working on a WM5 device, if so what did you do?

Thanks!

Geoff

[edited for clarity]

Edited October 27, 2006 by Marzbar

[Guest Marzbar]

Has anyone else managed to get NTLM working on a WM5 device, if so what did you do?

I guess that's a no :rolleyes:

[Guest Marzbar]

I guess that's a no :rolleyes:

I've sent a report to t-mobile's technical team, since I'm pretty sure MS wouldn't speak to me directly. They were remarkably helpful, for what it's worth. Will keep you posted.

Geoff