TLS Certificate: Some mail servers require computers that connect to them to provide a certificate proving their identity.Īllow insecure authentication: For email accounts that don’t support secure authentication, let Mail use a non-encrypted version of your user name and password to connect to the mail server.

IMAP Path Prefix: The location of your mailboxes on an IMAP server.

This option is available only for POP and IMAP accounts.Įnter or change these settings as directed by your email account provider: Port (or Internal Port and External Port), Use TLS/SSL: The port numbers for receiving messages, and whether to use TLS/SSL.Īuthentication: The authentication method. Download the Microsoft Authenticator app onto your phone. Steps to add an Office 365 account with Multi-factor Authentication enforced to work with the Mail App iOS or Later are as follows. If you deselect this option, you can specify the following, as directed by your email account provider: 8.Select which options you want available to you on your phone like mail, contact, calendar, etc. Mail automatically manages settings for your email account in Mail, such as port numbers and authentication methods.