Outlook 2010 - Could not connect to public folder server

Hi,

I just setup a brand new Exchange 2013 mail server. I get 'Could not connect to public folder server' in Outlook 2010 only and not in Outlook 2013. Is this normal? We are not using public folders at all and we don't have them setup in Exchange 2013.

Outlook 2010 -> sync issues ->

17:08:02                               Could not connect to public folder server.

17:08:02                               [0-0]

Outlook 2013 -> sync issues ->

Doesn't have  'Could not connect to public folder server' error.

Thanks