Re: [Evolution] Evolution EWS just shows one authentication method

Hey Pete,

Thanks for your reply.
Yes, I am aware of the fact they are not for production use but I have tried different versions to see if that was the problem but it is clearly not.
I am pretty sure it is configured correctly as if I put the URL on the browser I have to authenticate and it gives me the wsdl link.
Does anyone have any other idea?



Date: Sun, 13 May 2012 09:46:27 +0100

From: Pete Biggs <pete biggs org uk>
To: evolution-list gnome org
Subject: Re: [Evolution] Evolution EWS just shows one authentication
Message-ID: <1336898793 2859 13 camel red-barron>
Content-Type: text/plain; charset="ISO-8859-1"


> Tried the version that came with Ubuntu and also 3.4.1 and 3.5.1 and
> all of them with the same problem.
> I got stuck on the authentication part.

You do realise that the odd number releases (i.e. 3.3.x, 3.5.x, etc.)
are development releases and not meant for production use?

> I can understand that sometime the server doesn't show all the
> authentication types for you and my check for supported types doesn?t
> work on all versions I tested On the Authentcation Type, it just shows
> me one type of authentication (Password) and no others..
> I ran Evolution with EWS_DEBUG=2 and when I try to authenticate on the
> server it gives me unauthorized with error code 401. Trying the URL on
> a browser works fine. I even found a script that would connect via
> curl. I tested the script with authentication basic and ntlm. It works
> on basic but not on NTLM.
> Am I missing something here?

As a user of Evolution EWS (i.e. not a developer) I have found that
finding the required URL is a bit of a dark art.  It doesn't necessarily
follow that the URL you use is the same as the one for logging in to
OWA.  This is almost certainly not the fault of Evolution EWS, but more
the arcane and obscure setup of complex Exchange systems.  For instance
the Exchange 2010 server I use has a web access URL of (real names changed to protect the guilty),
whereas the EWS URL is

And then there's the username required - my external email address is of
the form 'first last unit domain uk', I login to the OWA interface with
my "real" username of, say, 'unmame', but the EWS config requires my
username there to be 'uname host domain uk'.  Again, I don't think this
is really a failing of Evolution EWS, but more a symptom of how Exchange
is setup.

All I can say is that once it's setup correctly, it works well.  All I
need now is shared calendar access ...


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