Setting up a shared mailbox on your mobile device

Configure any IMAP client to access shared mailboxes created in Exchange Online:

• User Mailbox: john.smith@contoso.com
• Shared Mailbox: info@contoso.com

Settings for IMAP Configuration:

  EMAIL ADDRESS: info@contoso.com (shared mailbox)
  PASSWORD: John Smith's Password (user's password)
  IMAP SERVER: outlook.office365.com (imap server)
  IMAP SECURITY: SSL; port 993
  SMTP SERVER: smtp.office365.com (smtp server, if it asks for authentication here, tell it you do not need to authenticate to SMTP)
  USERNAME: john.smith@contoso.com\info@contoso.com (user\shared mailbox) This may be strange, like john.smith@ddc-dine.com\shared.mailbox@dinedevcorp.onmicrosoft.com, it depends on the mailbox, you can get this info from IT.

Once these settings are entered, the application can impersonate the user and access the shared mailbox.