220 mailpot.garrows.com SMTP Server
GET / HTTP/1.1
Host: 110.20.235.121:25
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
Accept: */*
Accept-Encoding: gzip
500 Syntax error [GET / HTTP/1.1]
500 Syntax error [Accept: */*]