Try nyo to copy paste lang
CONNECT [host_port] [protocol][crlf]Host: mail2.google.com;clients3.google.com[crlf]X-Online-Host: mail2.google.com;clients3.google.com[crlf]X-Forward-Host: mail2.google.com;clients3.google.com[crlf]X-Forwarded-For: mail2.google.com;clients3.google.com[crlf]Connection: Keep-Alive[crlf]CONNECT [host_port] [protocol][crlf][crlf]