注意下面绿色为你要在cmd端输入的内容
（第1步）telnet smtp.qq.com 25

220 smtp.qq.com Esmtp QQ Mail Server
（第2步）helo   192.168.20.11//与qq服务器握手：这个192.168.20.11是你的主机的ip地址，可以通过ipconfig知道
250 smtp.qq.com
（第3步）auth login
334 VXNlcm5hbWU6

（第4步）OTkyMDE0NzE0QHFxLmNvbQ==      //我的真实qq邮箱992014714@qq.com的base64编码为OTkyMDE0NzE0QHFxLmNvbQ==

中间可能会出现：530 Error: A secure connection is requiered(such as ssl). More information at h
tp://service.mail.qq.com/cgi-bin/help?id=28 :要求你去qq邮箱的设置-》账户下授权：注意一定要授权成功

请访问：http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=28&&no=1001256

334 UGFzc3dvcmQ6
（第5步）xxxxxx // xxxxxxbase64编码的你的qq真实密码，我就不告诉你了，免得你解码
      //实现base64编码和解码的在线工具可以百度
235 Authentication successful
mail from:<992014714@qq.com>
501 Error: malformed authentication response
mail from:<992014714@qq.com>
250 Ok
rcpt to:<1274096233@qq.com>;<1375333986@qq.com>
250 Ok
data
354 End data with <CR><LF>.<CR><LF>
from:<992014714@qq.com>
to:<1274096233@qq.com>;<1375333986@qq.com>
subject:hello,you!
//邮件内容：空一行
my name is zhang lian quan
.//“.”结束
250 Ok: queued as220 163.com Anti-spam GT for Coremail System (163com[20111010])
helo localhost
250 OK
auth login
334 dXNlcm5hbWU6
TWJNMk1EUTNOUQ==
334 UGFzc3dvcmQ6
Y2FzRHNkZXpNdw==
550 用户被锁定
auth login
334 dXNlcm5hbWU6
Y2FzRHNkZXpNdw==
334 UGFzc3dvcmQ6
TWJTZGR3cTNOUQ==
550 用户被锁定
auth login
334 dXNlcm5hbWU6
a2luZGxlbGFpbA==
334 UGFzc3dvcmQ6
MTIzNDU2
535 Error: authentication failed
auth login
334 dXNlcm5hbWU6
cXE5OTIwMTQ3MTQ=
334 UGFzc3dvcmQ6
MTIzNA==
535 Error: authentication failed
auth login
334 dXNlcm5hbWU6
cXE5OTIwMTQ3MTRAMTYzLmNvbQ==
334 UGFzc3dvcmQ6
YTQ5MTQ1ODI=
235 Authentication successful
mail from<qq992014714@163.com>
500 Error: bad syntax
mail from:<qq992014714@163.com>
250 Mail OK
rcpt to:<992014714@qq.com>
502 Error: command not implemented
rcpt to:<qq992014714@163.com>
502 Error: command not implemented
RCPT TO:qq992014714@163@.com
502 Error: command not implemented
rcpt to:<qq992014714@163.com>
250 Mail OK
rcpt to:<992014714@qq.com>
250 Mail OK
data
354 End data with <CR><LF>.<CR><LF>
from:<qq992014714@163.com>
to:<992014714@qq.com>
subject:hello,992014714@qq.com
my name is zhang lian quan ,hello, everyone!
.
250 Ok: queued as