Activesync for outlook 2013

Activesync for outlook 2013

Dear Sir / Madam,

I wonder why I can't configure this email as active sync in microsoft outlook program.
I have managed to activate it in my Iphone, but I need it on my microsoft outlook 2013 as well, in order to synchronize the calendars and contacts.

I've got this error 
"Log onto Exchange ActiveSync mail server (EAS): The server you are trying to connect to uses an unsupported version of Exchange ActiveSync. The server is using version: '10, 20, 25, 120'. Contact your server administrator or Internet service provider (ISP) for assistance. "

Can you please help me out to configure it right ?
If it's not possible, have you got a solution to synchronizing contacts and calendar ?

Roy.