I have enabled Server-Side synchronization for Incoming mail, outgoing mail and Appointments, Tasks and Contacts on mailboxes in Dynamics CRM 2013. The mailboxes have been approved and enabled and also statuses for all 3 modes are successful.
However, Contacts, Tasks and Appointments created in CRM are synced properly in the Office 365 web application. But not the other way round. What must have gone wrong?