32-bit Outlook will soon be Large Address Aware

When you follow a group in Outlook, all group conversations and calendar events will be sent to both the group mailbox and your personal inbox. This is particularly helpful when you belong to multiple groups and want to stay on top of the conversations from one location.

Message originators won't receive copies of their messages in their inboxes. 

Follow a group

1. In Outlook 2016 or Outlook on the web, select a group from the left navigation pane.

2.  Office 365 group

   Create a space for a team to collaborate, communicate, and schedule events.

    Distribution list

   Create a list that people can use to send the same email message to more than one address.

    Help me choose

   Need tips on picking the right type of group or shared mailbox for your needs?

   At the top of the conversations list, select Not following > Follow in Inbox.