When you convert a Distribution List (DL) to a Microsoft 365 Group, emails sent to the group do not appear in users’ inboxes by default.
Instead, messages go to:
Outlook → Groups → Your Group Name
This is very different from DL behavior. For many organizations—especially large enterprises—you may want group emails to go directly to users’ inboxes for visibility.
While users can manually subscribe to group emails, this is not scalable for large environments. The steps below show how administrators can configure this centrally.
Sign in to the Microsoft 365 Admin Center:
Go to Groups and select the group you want to modify.
Enable the setting:
“Send copies of group conversations and events to group members”
To handle existing members, see the next section.