Frequently Asked Question
Adding an Office 365 Shared Mailbox in Mail for MacOS
Last Updated 29 days ago
Shared 365 mailboxes are nopt directly supported, however this workaround will work on some of the Apple Mail clients.
Mail -> Preferences
Accounts tab, click the + button at the bottom left.
Select Other Mail Account
Enter the shared mailbox email addess but use your main email user account password, then click Sign In
The authentication should fail.
You should now see some extra fields.
Enter the data :
Email Address: [Shared mailbox email]
User Name: [Main Office 365 email address]
Password: [Main Office 365 email password]
Account Type: IMAP
Incoming Mail Server: outlook.office365.com (993 with SSL/TLS )
Outgoing Mail Server: smtp.office365.com (587 with TLS)
Click Sign In and follow any instructions.
Mail -> Preferences
Accounts tab, click the + button at the bottom left.
Select Other Mail Account
Enter the shared mailbox email addess but use your main email user account password, then click Sign In
The authentication should fail.
You should now see some extra fields.
Enter the data :
Email Address: [Shared mailbox email]
User Name: [Main Office 365 email address]
Password: [Main Office 365 email password]
Account Type: IMAP
Incoming Mail Server: outlook.office365.com (993 with SSL/TLS )
Outgoing Mail Server: smtp.office365.com (587 with TLS)
Click Sign In and follow any instructions.