Steps to reproduce:
- add a new contact to your addressbook in WebApp
- send a mail to this contact selecting him from the addressbook
- wait till the mail has been synced to your sent items in Outlook over ActiveSync, check recipients of mail
- recipient should be displayed in the format "name i specified in the contact <firstname.lastname@example.org>" (like it is in WebApp).
- recipient is displayed as ""@"@hostname' (where hostname is the hostname of the sending machine).