CiraSync has a Special Offer for Exchange Server Pro readers:

  1. Receive an extended trial of CiraSync Enterprise Edition – test our centrally managed contact sync with 60 users for 60 days.
  2. Sync the GAL or specific groups to Office 365 mailboxes and smartphones.
  3. Sync Public Folders (contacts and calendars) to Office 365 mailboxes and smartphones.
  4. Receive email and live tech support.

CiraSync only supports mailboxes hosted in Office 365 Exchange.
On premise and hybrid contact sync solutions are available from itrezzo