Create an M365 (Microsoft 365) group

Create an M365 (Microsoft 365) group, add members, and ensure replies to group emails are sent from the group email address instead of the individual user’s address.

Step 1: Create a Microsoft 365 Group

You can create the group either from the Microsoft 365 admin center or Outlook.

Option A — M365 Admin Center

1. Go to https://admin.microsoft.com

2. In the left menu, select Teams & groups → Active teams and groups

3. Click Add a group

4. Choose Microsoft 365 group

5. Fill in:

   • Name (group email alias is auto-generated)

   • Description (optional)

   • Privacy (Public/Private)

6. Choose Create

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Step 2: Add Members to the Group

After creating the group:

1. In Admin Center → Teams & groups → Active teams and groups

2. Click your newly created group

3. Select Members

4. Click View all and manage members

5. Click Add members and add users

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Step 3: Ensure the Group Email Inbox Receives Mail

Make sure group settings allow external/internal emails:

1. In the group properties, select Settings

2. Enable:

   • Let people outside the organization email the group (optional)

   • Send copies of group messages to members’ inboxes (optional but recommended)

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Step 4: Enable “Send As” so users can reply using the group email address

This part is critical — by default, members reply as themselves. To allow replying as the group, you must enable Send As permission in Exchange Admin Center.

Steps:

1. Go to Exchange Admin Center https://admin.exchange.microsoft.com

2. In the left menu, select Groups → Active groups

3. Select your Microsoft 365 Group

4. Go to Settings → Permissions

5. Under Send as, click Edit

6. Add the users who should be able to send mail as the group

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Step 5: How users send/reply FROM the group email

After Send As is enabled:

In Outlook (Desktop/Web):

1. Open the email sent to the group

2. Click Reply / Reply all

3. In the From: field, choose the Group email address

   • If From is hidden, enable it via Options → From

Outlook will now send the message FROM the group mailbox, not the user’s mailbox.