Create a Shared Mailbox

Applies to: Exchange Server 2013, Exchange Online

Topic Last Modified: 2012-10-11

Shared mailboxes make it easy for a specific group of people to monitor and send email from a common account, such as info@contoso.com or contact@contoso.com. When a person in the group replies to a message sent to the shared mailbox, the email appears to be sent from the shared mailbox, not from the individual user.

You can configure the shared mailbox with the following delegate permissions:

Full Access The Full Access permission allows a user to log into the shared mailbox and act as the owner of that mailbox. While logged in, the user can create calendar items; read, view, delete, and modify email messages; create tasks and calendar contacts. However, a delegate with Full Access permission can’t send email from the shared mailbox unless they also have Send As or Send on Behalf permission.
Send As The Send As permission allows a user to impersonate the shared mailbox when sending mail. For example, if Kweku logs into the shared mailbox Marketing Department and sends an email, it will appear as though the Marketing Department has sent the email.
Send on Behalf The Send on Behalf permission allows a user to send email on behalf of the shared mailbox. For example, if John logs into the shared mailbox Reception Building 32 and sends an email, it will appear to recipients as being sent by “John on behalf of Reception Building 32”. To grant Send on Behalf permissions, you must use the Exchange Management Shell. Use the Set-Mailbox cmdlet with the GrantSendonBehalf parameter.

To learn more about shared mailboxes, see Shared Mailboxes.

What do you need to know before you begin?

Estimated time to complete: 5 minutes.
You need to be assigned permissions before you can perform this procedure or procedures. To see what permissions you need, see the "User mailboxes" entry in the Recipients Permissions topic.
For information about keyboard shortcuts that may apply to the procedures in this topic, see Keyboard Shortcuts in the Exchange Admin Center.

Tip:
Having problems? Ask for help in the Exchange forums. Visit the forums at: Exchange Server, Exchange Online, or Exchange Online Protection

What do you want to do?

Use the EAC to create a shared mailbox

Navigate to Recipients > Shared, and then click Add .
Complete the following required fields:
- Display name
- Email address
To grant Full Access or Send As permissions, click Add , and then select the users you want to grant permissions for.

Tip:

You can use the CTRL key to select multiple users.
Click Save to save your changes and create the shared mailbox.

Tip:
You can use the CTRL key to select multiple users.

Use the Shell to create a shared mailbox

This example creates the shared mailbox Sales Department and grants Full Access and Send on Behalf permissions for the security group MarketingSG. Users who are members of the security group will be granted the permissions to the mailbox.

	Copy Code
New-Mailbox -Shared -Name "Sales Department" -DisplayName "Sales Department" -Alias Sales \| Set-Mailbox -GrantSendOnBehalfTo MarketingSG \| Add-MailboxPermission -User MarketingSG -AccessRights FullAccess -InheritanceType All

Copy Code

New-Mailbox -Shared -Name "Sales Department" -DisplayName "Sales Department" -Alias Sales | Set-Mailbox -GrantSendOnBehalfTo MarketingSG | Add-MailboxPermission -User MarketingSG -AccessRights FullAccess -InheritanceType All

For detailed syntax and parameter information, see New-Mailbox.