What should you do?
A. From Active Directory Users and Computers, modify the E-mail attribute for each user.
B. From Microsoft Azure Active Directory Module for Windows PowerShell, run the Set-Mailbox cmdlet.
C. From Active Directory Domains and Trust, add a UPN suffix for each user.
D. From the Office 365 portal, modify the Users settings of each user.
Answer:B
What should you do?
A. From Active Directory Users and Computers, modify the E-mail attribute for each user. B. From Microsoft Azure Active Directory Module for Windows PowerShell, run the Set-Mailbox cmdlet. C. From Active Directory Domains and Trust, add a UPN suffix for each user. D. From the Office 365 portal, modify the Users settings of each user.
Explanation: We can use the Set-Mailbox cmdlet to modify the settings of existing mailboxes.