6 /** RFC 1939 USER authentication */
7 define('MAIL_FETCH_AUTH_USER',1);
8 /** RFC 1939 APOP authentication */
9 define('MAIL_FETCH_AUTH_APOP',2);
10 /** All authentication methods described in RFC 1939 */
11 define('MAIL_FETCH_AUTH_RFC1939',3);
13 /** Connection types */
14 define('MAIL_FETCH_USE_PLAIN',0);
15 define('MAIL_FETCH_USE_TLS',1);
16 define('MAIL_FETCH_USE_STLS',2);