kolab vs scalix

[Liutauras Adomaitis]

Hello everybody,

does anybody knows anything about Kolab and Scalix comparison. We are choosing 
solution for groupware server for 40 users network. All users are with 
Windows workstations. We didn't decided, but as a client we plan to use 
either MS Outlook (2003/2007) or Mozilla Thunderbird. Outlook is more mature, 
but Thunderbird is closer to our "Open Source Spirit".
We have tested Kolab2 and several connectors to Outlook did not seem to work 
very well (some are not MAPI, the others work very slow). SyncKolab also did 
not act the way we expected. I understand that there maybe our problems, but 
still it is problems for us.
We did not tested Scalix yet, but got some recommendations about it.

So what does Kolab users think about Kolab and Scalix.
- Server installation, maintenance and backup
- Commercial support (this is a big issue for us)
- Outlook support
- Thunderbird support
- Webmail (Horde vs Scalix Java webmail)
- Any links on the web about this comparison

Price is not a big issue for us as long as it is cheaper than Exchange.

Liutauras