> -----Original Message-----
> From: CommuniGate Pro Discussions
> [mailto:CGatePro@mail.stalker.com] On Behalf Of Aleksandar Zivaljevic
> Sent: Friday, April 09, 2010 11:17 PM
> To: CommuniGate Pro Discussions
> Subject: Re: Authentication: NTLM and DIGEST-MD5 issue with
> Outlook (and other mailers possibly)
>
>
> It looks like when DIGEST-MD5 method is used, the problem is
> the user name, not password. The following is the relevant
> line in log:
>
> ROUTER SYSTEM: 'UserName@SubDomain.com@MainDomain.com'
> rejected. Error Code=unknown user account
>
> It looks like the ROUTER SYSTEM first adds @MainDomain.com to
> the user name received and makes it unrecognizable.

[snip]

I think you have misdiagnosed the problem here (or, rather, the cause). The router system has not added the @MainDomain.dom, it is rejecting the attempt because the user 'UserName@SubDomain.dom@MainDomain.dom' doesn't exist. It had nothing to do with adding that. In other words, CGPro isn't causing this problem, it is simply reacting to a problem caused by the client.

I think you will find that the problem lies with Outlook or the MAPI connector. I vaguely remember running into issues with Outlook/MAPI when I specified a FQDN as the server name that was not the same as the user's domain. My apologies for not remembering what exactly the circumstances were, or how it was resolved, but you might consider calling CommuniGate Support or opening a ticket online. They're very helpful for things like this.

Tom