3 ms·
https://tools.ietf.org/html/rfc2827 https://tools.ietf.org/html/rfc2827 http://www.bcp38.info/index.php/Main_Page http://www.bcp38.info/index.php/Main_Page
by based2 10y ago
https://tools.ietf.org/html/rfc2827 https://tools.ietf.org/html/rfc2827
http://www.bcp38.info/index.php/Main_Page http://www.bcp38.info/index.php/Main_Page