使用telnet测试邮件服务器是否正常

[snp@date Flux]$ telnet anonymousrelay.chinacache.com 25
Trying 61.135.207.214...
Connected to anonymousrelay.chinacache.com (61.135.207.214).
Escape character is '^]'.
220 corp.chinacache.com Microsoft ESMTP MAIL Service ready at Wed, 14 Aug 2013 14:32:39 +0800
helo chinacache.com
250 corp.chinacache.com Hello [58.68.140.11]
mail from:<[email protected]>
250 2.1.0 Sender OK
rcpt to:<[email protected]>
250 2.1.5 Recipient OK
subject:anonymous relay
500 5.3.3 Unrecognized command
rcpt to:[email protected]
250 2.1.5 Recipient OK
data
354 Start mail input; end with <CRLF>.<CRLF>
subject:test mail
from:[email protected]
to:[email protected]
hello,
this is a test mail
.
250 2.6.0 <a4bf7399-60a6-49d1-9ef2-111d21fa7474@CC-EX07-CAS02.chinacache.local> Queued mail for delivery