Never heard of that one, ActiveSync is used for mobile devices from my understanding. Check out this link

http://answers.microsoft.com/en-us/office/forum/office_2013_release-outlook/why-outlook-2013-does-not-connect-to-activesync/a3551dc7-edc3-423a-b596-2bce7889d91a

Project Hawthorn

http://www.idonotes.com/IdoNotes/idonotes.nsf/dx/project-hawthorn-notes---more-on-microsoft-outlook-2013-and-ibm-domino.htm

Hi Jennifer,
many thanks. Will contact our sales rep via IBM passport. We already have Domino 9.0.1 and we want to try it with few users. Always as a beta test.

Regards,
Oliver

I'm running Domion 9.0.1 FP1 IF1 and Outlook 2013 32-bit.  I am now able to connect to Domino, but when I open Outlook, it errors and is unable to sync.  The Outlook error is "the server configuration prevents you from synchronizing" and details reads "the user agent of the request is not allowed" like the Domino server is seeing Outlook as the connecting computer and blocking it.  Do I need to do anything else to enable this functionality?  In the presentation slides on IMSMO, they refer to an Outlook add-in, but I have been unable to identify any more information or where to get this add-in.  Anyone know anything else on this?  Thanks.