You have a hybrid deployment between Microsoft Exchange Online and on-premises Exchange Server 2019.
All user mailboxes are in Microsoft 365.
A user named User1 leaves your company.
You delete the user account of User1 from the on-premises Active Directory domain.
Two weeks later, User1 returns to the company.
You need to ensure that User1 can connect to his mailbox and access all his old email messages.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.