我已经用tcping来ping过我的服务器25端口是通的
Probing 198.xx.xx.xx:25/tcp - Port is open - time=167.528ms
Probing 198.xx.xx.xx:25/tcp - Port is open - time=177.785ms
Probing 198.xx.xx.xx:25/tcp - Port is open - time=167.642ms
Probing 198.xx.xx.xx:25/tcp - Port is open - time=178.484ms
我不用ssl应该不影响我收发邮件和登录邮箱吧