Create Exchange online address list

https://docs.microsoft.com/en-us/exchange/email-addresses-and-address-books/address-lists/address-lists?view=exchserver-2019#:~:text=By%20default%2C%20a%20new%20installation,recipients%20in%20the%20Exchange%20organization.

--------------------------------Filter properties------------------------------------------
https://docs.microsoft.com/en-gb/powershell/exchange/recipientfilter-properties?view=exchange-ps

-------------Steps------------------
https://tech.xenit.se/how-to-create-a-custom-address-lists-in-exchange-online/

Get-AddressList
New-AddressList -Name 'Test Address List' -RecipientFilter {((Company -eq 'XYZ'))}

----------Bulk Contact user creation ---------------------
https://docs.microsoft.com/en-us/microsoft-365/compliance/bulk-import-external-contacts?view=o365-worldwide#hide-external-contacts-from-the-shared-address-book