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Use telnet to test whether the email server is normal

Source: Internet
Author: User
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Use telnet to test whether the email server is normal Java code [snp @ dateFlux] $ coding (61.135.20 use telnet to test whether the email server is normal Java code [snp @ date Flux] $ telnet anonymousrelay.chinache.com 25 Trying 61.135.207.2. .. connected to anonymousrelay.chinache.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: 250 2.1.0 Sender OK rcpt: 250 2.1.5 Recipient OK subject: anonymous relay 500 5.3.3 Unrecognized command rcpt to: baozong.gao@chinacache.com 250 2.1.5 Recipient OK data 354 Start mail input; end . Subject: test mail from: baozong.gao@chinacache.com to: baozong.gao@chinacache.com hello, this is a test mail. 250 2.6.0 Queued mail for delivery

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