how many email addresses can I have for my business?

Add [Email] as an alias to your existing Microsoft 365 mailbox if messages should arrive in your current inbox; each user can have up to 400 aliases, with no additional license or fee required.^1^

Add info@ to your existing mailbox

A Microsoft 365 administrator with an Exchange-based admin role must:

1. Open the Microsoft 365 admin center.
2. Go to Users → Active users.
3. Select your existing business-email user.
4. Under Aliases, select Manage username and email.
5. In Username, enter info.
6. Select LeadershipInitiativesGroup.com from the domain list.
7. Select Add, then Save changes.

Messages addressed to [Email] will then be delivered to your existing inbox. The change can take up to 24 hours to appear everywhere.^1^

If Manage username and email is unavailable, verify that:

• The selected user has a license.
• Your account has an Exchange-based administrator role.
• The domain appears in the domain drop-down list.

Replying as info@

Receiving through an alias does not create a separate inbox. Reply behavior depends on the Outlook client:

• Outlook on the web can use the alias that received the message.
• Outlook desktop normally uses the mailbox’s primary address.
• An administrator can enable alias sending for the organization with Set-OrganizationConfig -SendFromAliasEnabled $true, after which users can select aliases for the From field in Outlook on the web.^1^

If several people need to manage info@

Create a shared mailbox instead when multiple employees need a common inbox or need replies to appear consistently from [Email]:

1. In the Microsoft 365 admin center, go to Teams & Groups → Shared mailboxes.
2. Select + Add a shared mailbox.
3. Enter its name and [Email], then save.
4. Select Add members to this mailbox and add the employees who should access it.
5. Grant both:
   • Full Access to open and manage its messages.
   • Send As to send messages that appear to come from [Email].

Shared mailboxes usually do not require a separate license. A license is required if the mailbox uses more than 50 GB, in-place archiving, or litigation hold.^2^

If you are not the Microsoft 365 administrator, send these instructions to whoever manages your business subscription; aliases and shared mailboxes cannot be configured from ordinary Outlook account settings.

References

1. Add another email alias for a Microsoft 365 business subscription user
2. Create a shared mailbox