We’ve completed work to hide groups from Outlook (GAL, left nav, and name resolution) that were created as a result of a new Team in Microsoft Teams. Additional Groups can also be hidden using the HiddenFromExchangeClientsEnabled flag. We’re now evaluating if there are additional scenarios that need to be supported.
Follow the instructions here to unsubscribe to a group:
We still need this. I'm really tired of having distribution groups and matching O365 groups...
If this issue were fixed, we could replace almost all of our distribution lists with office 365 groups. Please review admin response
We have announced that Group Owners will be able to leverage existing groups to drive membership in Office 365 Groups.
The O365 Group calendars are not very useful, because any time someone posts to the calendar, the entire group is spammed with an email invitation. We'd like to be able to use it like a board that people can check, not like a distribution list.