Your network contains an Active Directory domain named corp.contoso.com. The domain contains client computers that have Microsoft Office 36S Apps installed. You have a hybrid deployment that contains a Microsoft Exchange Online tenant and an on-premises Exchange Server 2019 server named Server1. All recipients use an email address suffix of Contoso.com.
You migrate all the Exchange Server recipients to Exchange Online, and then decommission Server1.
Users connected to the internal network report that they receive an Autodiscover error when they open Microsoft Outlook.
You need to ensure that all users can connect successfully to their mailbox by using Outlook.
Which two actions should you perform? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.