Open and use a shared mailbox in Outlook on the web

Introduction

A shared mailbox makes it easy for a group of people to monitor and send email from a public email address, like [email protected]. 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.

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. 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.
3. In the Add shared folder dialog box, type the name or email address of someone who has shared a mailbox with you, and then click Add. Or, type the name of the shared mailbox you are a member of, such as [email protected].

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.

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