Find Related messages - Microsoft Tech Community
techcommunity.microsoft.com › t5 › outlookNov 17, 2021 · You can bypass the manual effort with Find Related Conversations and enable the Show as Conversation feature. This options groups all related messages automatically. You can expand to see all messages. When you move an email to a folder and choose "all mailboxes," all conversations in the inbox, sent, and other folders are shown. Give it a try.