Manually downloading the address book is the most effective way to force an immediate update and resolve "name not found" errors.
How to Manually Download the Address Book in Outlook 2016 When you use Outlook 2016 in , it maintains a local copy of your organization's directory called the Offline Address Book (OAB) . While Outlook is designed to update this list automatically every 24 hours, synchronization gaps can occur, leading to missing contacts or outdated email addresses. manually download address book outlook 2016
You can trigger a manual download using two primary methods within the Outlook interface. This is the most direct way to access the download command: Administering the offline address book in Outlook Manually downloading the address book is the most