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I have several domains hanging under my company.
Is there any way I can limit users from domain1.com from seing contacts from domain2.com ?
I understand you prefer to limit the GAL (Global Address List) viewing for your users with different domains.
This target can’t be achieved in Exchange Online. However, we can hide an user entirely from the GAL. Or we can use multiple Office 365 tenants, so that our domain users can’t be seen by each other.
To hide users entirely in GAL:
1, Connect PowerShell to Exchange Online.
2, Run the following command:
Get-Mailbox Alias | Set-Mailbox -HiddenFromAddressListsEnabled $True
Change Alias to your user's information.
If you need any further assistance, please feel free to contact us.
How are things going? Did my above information help you?
How do I set up multiple Office 365 tenants?
-> How do I set up
multiple Office 365 tenants?
requirement, you can subscribe multiple Office 365 tenant for your multiple
domains. For more detailed information, I would like to suggest you contact our
Sales and Billing support team.
How are things going on? In addition, do you need any further assistance?