Скачать или смотреть Manage Online Exchange Groups (M365,Mail-enabled, Distribution Group)

1. Distribution Group (DG)
What it is

A Distribution Group is used only for sending emails to multiple users at once.

No mailbox

No files

No calendar

Email-only group

Example

Group name: [email protected]
Members:

Ram

Shyam

Mohan

When someone emails [email protected]
, all members receive the mail in their inbox.

Use case

Company announcements

Department emails

Training notifications

2. Security Group (Mail-enabled)
What it is

A Security Group is mainly used for access control, but when mail-enabled, it can also receive emails.

Used for permissions (SharePoint, apps, Azure, etc.)

Can receive emails

No shared mailbox

Example

Group name: Azure-Admins

Uses:

Assign Azure RBAC role

Grant SharePoint access

Send admin alerts via email

Email sent to [email protected] goes to all admins.

Use case

Access control + email communication

Admin or role-based groups

3. Microsoft 365 Group (Unified Group)
What it is

A Microsoft 365 Group is a collaboration group.

Includes:

Outlook group mailbox

Shared calendar

SharePoint site

OneDrive

Can be connected to Microsoft Teams

Example

Group name: Project-Apollo

Members can:

Email the group

Share files

Chat in Teams

Schedule meetings

Use case

Project teams

Training batches

Cross-department collaboration

4. Dynamic Distribution Group (DDG)
What it is

A Dynamic Distribution Group automatically adds users based on rules/filters.

No manual membership

Members update automatically

Email-only group

Example

Group rule:

Department = Sales

Group name: [email protected]

Email sent to this group goes to all users whose department is Sales.

If a new user joins Sales → automatically included.

Use case

Department-based communication

Location-based groups

Role-based broadcast emails