Active sync: can't find server

Paul Klos kolab at
Fri Aug 9 22:37:44 CEST 2013

Op vrijdag 9 augustus 2013 22:14:01 schreef Siegfried Van Eygen:
> I installed Kolab 3.0 on CentOs 6.4.
> I got everything working, except for Active sync.
> When I log in <server-ip>/Microsoft-Server-ActiveSync I get 'It Works' 
> Your ID= 2 Your Ip= <server-ip>. So I guess configuration is correct.
> However, when I set up a connection via Outlook 2013 (inside the LAN), I 
> got the message 'could not find Microsoft Active Sync server'.
> I tried with the <server-IP> address, with the name of te server, no luck...
> I can set-up a normal e-mail account, but of course, like this, I don't 
> get calenders, contacts,...
> I really don't know what is going wrong. Is it a Kolab problem? Is it 
> network related?
> How can I figure out what is going on, or even better, how can I solve 
> this problem?
> S. Van Eygen
Hi Siegfried,

AFAIK once you get the "It works" page, you should be good.

I have a working activesync setup, however I have never been able to make a connection from Outlook (I only briefly tried at work, outside my LAN). I can't prove it, but I suspect Outlook requires a https connection with a valid certificate, signed by a known CA. Or maybe you can import a root CA into IE's certificate store and Outlook will pick that up as well. I wasn't able to try this due to lack of permissions.

My certificate is self-signed; this is the only reason I could come with why this wouldn't work with Outlook. In the end, I gave up, since it's no big deal for me. Maybe you can test with a mobile phone or some other device, so that you can at least establish that it works with some clients.

It could be interesting to see if Outlook is attempting to make a https connection, or if it's actually connecting over http. That might give you some clues as well.

Good luck,

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