Can't add remote mailbox when setting email forwarding in Exchange Server 2019 or 2016 Hybrid environment

Applies to: Exchange Server 2019Exchange Server 2016


In a hybrid Exchange Server environment, remote mailboxes are not shown when you try to configure email forwarding for a mailbox in Exchange admin center (EAC).


The filter that's used for searching the remote mailboxes is missing RemoteUserMailbox under RecipientTypeDetails.


To fix this issue, install one of the following updates:


Learn about the terminology that Microsoft uses to describe software updates.