When changes occur within the main Global Address Book (GAL) on the Office 365, computers running Outlook 2010 and 2013/2016 may not automatically receive the updates. If this is happening, then you may notice missing, non-existent and/or incorrect entries. Synchronizing your Outlook (cached) address book with the Global Address book may fix these discrepancies. Instances of mail that is bounced back to the sender may also be fixed.
Please use the steps below to update your Global Address Book.
tab, Click on , and then click Download Address Book.
- In the Offline Address Book dialog box, make sure that the Download changes since last Send/Receive check box is checked.
- Your Outlook Global Address Book is now up-to-date.
Outlook 2013 and 2016
Outlook 2011 and 2016
Outlook 2011 does not use Exchange Cached mode and directly connects to the Global Address Book (GAL) via LDAP connection. In this case your global address book will update each time Send/Receive is pressed.
Check out Microsoft's FAQs for Office 365 (https://support.office.com/). Microsoft also has some great training videos you can watch to become familiar with using Office 365 applications. Please visit the Office Training Center.