test smtp via telnet

220 163.com Anti-spam GT for Coremail System (163com[20121016])
ehlo xxx321
502 Error: command not implemented
ehlo xxx321@163.com
250-mail
250-PIPELINING
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
250-coremail 1Uxr2xKj7kG0xkI17xGrU7I0s8FY2U3Uj8Cz28x1UUUUU7Ic2I0Y2UFGpUTzUCa0xDr
UUUUj
250-STARTTLS
250 8BITMIME
auth login
334 dXNlcm5hbWU6
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa==
334 UGFzc3dvcmQ6
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa==
235 Authentication successful
mail from:<xxx321@163.com>
500 Error: bad syntax
mail from: <xxx321@163.com>
250 Mail OK
rct to: <249757564@qq.com>
502 Error: command not implemented
rcpt to: <249757564@qq.com>
500 Error: bad syntax
rcpt to:<249757564@qq.com>
250 Mail OK
data
354 End data with <CR><LF>.<CR><LF>
from xxxxyyyyyy@163.com
subject:take a leave tomorrow

this is body text
.
250 Mail OK queued as smtp14,EsCowECpbVPb405R7oKoAg--.1452S2 1364124943

原文地址:https://www.cnblogs.com/cnbwang/p/2979515.html