Free Outlook Connector ?

Hello,

i'm testing a few opensource groupware solutions but i face to a common problem :

an outlook connector.

not satisfied by the few solutions i tested, i'm thinking about come back to the "custom" mail setup, i always made..

But want to know what do the people use as outlook connector for groupware or dovecot simply (unless people only use imap ) ?

Thank you very much,

Sincerely,

 

As far as I know, most groupware solutions charge for their Outlook connectors.

 

thanks to confirm