This worked for me: Account title: (any title) Name: (any name) User name: user name (without @yahoo.com) Password: password E-mail address: email address Incoming server (IMAP4): imap.n.mail.yahoo.com Secure authentication : unchecked Secure connection: None Port: 143 Outgoing server (SMTP): smtp.mail.yahoo.com Secure authentication: Login User name: user name (without @yahoo.com) Password: password Secure connection: SSL Port: 465 Use connection-specific SMTP servers: unchecked