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Manually Update Global Address List (GAL) via Microsoft Exchange Powershell

This will be a short post but I thought I would post this as I have had to use this recently while updating the Global Address List.

This can be completed by using the below command –

Update-GlobalAddressList -Identity “Default Global Address List”

This will proceed to update the Global Address List entries as per the below screenshot –

Update GAL via Microsoft Exchange Powershell - Manually Update Global Address List (GAL) via Microsoft Exchange Powershell

You may receive the above messages that state that the above mailboxes are invalid. These are Microsoft Exchange System Mailboxes so they will not be populated on the GAL.

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