telnet 使用smtp发送邮件

执行命令

 

telnet smtp.buaa.edu.cn 25
220 buaa.edu.cn Anti-spam GT for Coremail System (buaa[20140724])
helo localhost
250 OK
auth login
334 dXNlcm5hbWU6
ZGluZbaseb4email
334 UGFzc3dvcmQ6
Zbase64password
235 Authentication successful
mail from:<[email protected]>
250 Mail OK
rcpt to:<[email protected]>
250 Mail OK
data
354 End data with <CR><LF>.<CR><LF>
from:<[email protected]>
to:<[email protected]>
subject:hello,[email protected]

hello smtp
.
250 Mail OK queued as AQAQrABnbdGqjxlXSNvqAA--.7207S2

命令解析

telnetsmtp.buaa.edu.cn 25   --填写smtp地址和端口

220 buaa.edu.cn Anti-spam GT for CoremailSystem (buaa[20140724])

helo localhost

250 OK

authlogin

334 dXNlcm5hbWU6

ZGluZbaseb4email  --发件箱的base64

334 UGFzc3dvcmQ6

Zbase64password --发件箱密码base64

235 Authentication successful

mailfrom:<[email protected]>  --发件箱地址

250 Mail OK

rcptto:<[email protected]>  --收件箱地址 可多次添加

250 Mail OK

data         --开始添加正文

354 End data with<CR><LF>.<CR><LF>

from:<[email protected]>

to:<[email protected]>

subject:hello,[email protected]

                           --空一行填写

hellosmtp

.                               --最后一行以.结束

250 Mail OK queued asAQAQrABnbdGqjxlXSNvqAA--.7207S2

"."是结束

执行

以下是执行截图:

收件箱

Base64加密解密地址：

http://tool.chinaz.com/Tools/Base64.aspx