Applies ToOutlook for Microsoft 365 Outlook 2024 Outlook 2021 Outlook 2019 Outlook 2016 Office for business Office 365 Small Business Microsoft 365 admin Outlook on the web Microsoft Office New Outlook for Windows

A shared mailbox makes it easy for a group of people to monitor and send email from a public email alias like info@contoso.com. When a person in the group replies to a message sent to the shared mailbox, the email appears to be from the shared address, not from the individual user. In classic Outlook, you can also use the shared mailbox as a shared team calendar. A shared mailbox is also suitable for use as a "noreply" email account.

Tip: If you're a small business owner looking for more information on how to get Microsoft 365 set up, visit Small business help & learning.

A shared mailbox isn't designed for anyone who's sharing the mailbox to sign in directly to the account. The account for the shared mailbox itself should stay in a disabled state.

Tip: Before you can use a shared mailbox, the Microsoft 365 admin for your organization has to create it and add you as a member. For more information, see Create a shared mailbox, which describes what the admin needs to do.

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A shared mailbox makes it easy for a group of people to monitor and send email from a public email address, like info@contoso.com. When a person in the group replies to a message sent to the shared mailbox, the reply appears to come from the shared address, not from the individual person. You can also use the shared mailbox as a shared team calendar.

Tip: Before you can use a shared mailbox, the Microsoft 365 admin for your organization has to create it and add you as a member. For more information, ask your admin to see Create a shared mailbox, which describes what the admin needs to do.

Add the shared mailbox so it displays under your primary mailbox

If you want to monitor the email from your primary mailbox and the shared mailbox at the same time, use this method. After you complete this task, the shared mailbox and its folders are displayed in the left navigation pane each time you open Outlook on the web.

  1. Sign in to your account in Outlook on the web.

  2. For Exchange Online mailboxes, right-click Folders in the left navigation pane, and then choose Add shared folder or mailbox. For Exchange on-premises mailboxes, right-click the name of your primary mailbox (such as Molly Dempsey) in the left navigation pane, and then choose Add shared folder or mailbox.

    Screenshot showing selection to Add shared folder or mailbox

  3. In the Add shared folder dialog box, type the name of the shared mailbox you are a member of, such as info@contoso.com.

The shared mailbox displays in your Folder list in Outlook on the web. You can expand or collapse the shared mailbox folders as you can with your primary mailbox. You also can remove the shared mailbox from your Folder list. To remove it, right-click the shared mailbox, and then click Remove shared folder.

Receive notifications of new messages in a shared mailbox

To receive notifications of new messages in the Inbox of a shared mailbox, you must open the shared mailbox in a separate browser window.

Open the shared mailbox in a separate browser window

Use this method if you want to view and manage the email for the shared mailbox in its own browser window. This method also lets you receive notifications of new items in the Inbox of the shared mailbox.

  1. Sign in to your account in Outlook on the web.

  2. On the Outlook on the web navigation bar, click your name. A list appears.

  3. Click Open another mailbox.

  4. Type the email address of the other mailbox that you want to open, and then click Open. Another Outlook on the web session opens in a separate window, allowing access to the other mailbox.

    Tip: If you mistype the email address of the mailbox, the result is "No match was found". Try typing the email address again.​​​​​​​

Note: If you open a shared mailbox using the Open another mailbox option, you may encounter issues when accessing Office Add-ins from the mailbox. To ensure that add-ins work as expected in your shared mailbox, we recommend opening the mailbox in the same panel as your primary user mailbox. If you prefer to open the shared mailbox using the Open another mailbox option, we recommend deploying the add-in to both your primary user and shared mailboxes.

Send email from the shared mailbox

  1. Choose New mail above the folder list. A new message form opens in the reading pane.

  2. At the top of the message, choose More actions > Show From.

    A screenshot of the Show From option

    This option shows you that the people who receive the email message will see it comes from the shared mailbox and not from your own email account.

  3. The first time you use the shared mailbox, you need to add the address to the options available in the From drop-down list:

    1. Right-click the From address and choose Remove.

      A screenshot of the Remove option

    2. Type the shared address. The next time you reply from the shared mailbox, its address will appear as an option in the From drop-down list.

  4. To add recipients, type the name of anyone who is in your contacts folder or organization's address list, or type the email address in the To or Cc box. The first time you enter a person's name, Outlook on the web searches for that person's address. In the future, the name is cached so it resolves quickly.

  5. Type a subject.

  6. Type the message you want to send.

  7. When your message is ready to go, click Send.

Reply to mail sent to the shared mailbox

The first time you reply to a message sent to the shared mailbox, you need to add the shared address to the From drop-down box. Here's how to do that:

  1. Open Outlook on the web and go to your shared mailbox.

  2. Open a message that was sent to the shared address.

  3. Click Reply.

  4. At the top of the message, choose More actions > Show From.

    A screenshot of the Show From option

  5. Right-click the From address and choose Remove.

    A screenshot of the Remove option

  6. Type the shared address and send the message. The next time you reply from the shared mailbox, its address will appear as an option in the From drop-down list.

Send automatic replies from a shared mailbox

Only your Microsoft 365 admin has permissions to set up the ability to send automatic replies from a shared mailbox. For instructions, ask your admin to see Create a shared mailbox.

Send automatic replies from a shared mailbox

Only your Microsoft 365 admin has permissions to set this up. For instructions, see Create a shared mailbox.

See also

Add a shared mailbox to Outlook mobile

Open a shared Mail, Calendar or People folder in Outlook for Mac

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