Working with a lot of customers, allows me to see a lot of different things and how comapnies work. I still see some confusion about O365 groups and the traditional distribution lists in Exchange. So sometimes I prefer to organize a meeting to explain some of the features that each of the solutions has, and then set a plan focused on the way of working of the company. So here it is the main point about O365 Groups and DL.
Office 365 Groups vs distribution lists
| Distribution list | Office 365 Group | |
|---|---|---|
| Functionalities | Enables users to send emails to all members of a group. | In addition to the distribution list’s feature, integrates with SharePoint, Yammer, Team, Planner, OneNote, and PowerBI. |
| PowerShell management | Yes, sample cmdlet: Set-DistributionGroup. | Yes, sample cmdlet: Set-UnifiedGroup. |
| EAC management | Yes. | Yes. |
| Can send emails to all members of a list | Yes, both for internal and external senders. | Yes, both for internal and external senders. |
| Shared inbox | No, emails are only distributed to members. | Yes. |
| Defining access type | Not available. | The option is available. |
| Document library | Not available. | Set up automatically in SharePoint. |
| Shared calendar | Not available. | Set up automatically. |
| Required license | Any AAD subscription (including free.) | Free AAD subscription is enough for most Office 365 Groups’ features. For a full list of available features visit this article. |
| Restore a deleted group | Not available. | Office 365 group can be restored for up to 30 days after deletion. |
| Dynamic membership | Possible with Dynamic Distribution Groups. | Requires Azure AD premium subscription. |
Albandrod's Memory 