Written by Support InfoBridge
It is possible to locate the OAB and EWS url's which are used for the Exchange Online Synchronizer, using Microsoft Outlook. Follow this guide to find out how this is done.
In the taskbar you see the Outlook icon. Hold the CTRL key and Right-click on the Outlook icon.
You will get this menu
Select Test E-mail AutoConfiguration
Fill out the E-mail Address and password, and click test.
In Results, you can find the EWS and OAB urls.
If you get an error message, or no link to the OAB is supplied, it could be due to a setting on the Exchange server. Please contact your (local) Exchange Administrator and they will supply you with the correct URL's.
EWS = Exchange Web Services
OAB = Offline Address Book
The format to use for EWS and OAB: