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. If you deselect this option, you can specify the following, as directed by your email account provider: Mail automatically manages settings for your email account in Mail, such as port numbers and authentication methods.