Long: ssl Help: Try SSL/TLS Protocols: FTP IMAP POP3 SMTP Added: 7.20.0 --- Try to use SSL/TLS for the connection. Reverts to a non-secure connection if the server doesn't support SSL/TLS. See also --ftp-ssl-control and --ssl-reqd for different levels of encryption required. This option was formerly known as --ftp-ssl (Added in 7.11.0). That option name can still be used but will be removed in a future version.