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原帖由 kr2000 于 2012-1-28 20:56 发表 
判断存不存在不是已经相当于spam过一次了吗
不会spam:
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Connecting mail.messaging.microsoft.com:25
220 VA3EHSMHS002.bigfish.com Microsoft ESMTP MAIL Service ready at Sat, 28 Jan 2012 13:11:38 +0000
EHLO rootever.com
250-VA3EHSMHS002.bigfish.com Hello [50.21.180.153]
250-SIZE 157286400
250-PIPELINING
250-ENHANCEDSTATUSCODES
250-STARTTLS
250-AUTH
250-8BITMIME
250-BINARYMIME
250 CHUNKING
MAIL FROM: <user@rootever.com>
250 2.1.0 Sender OK
RCPT TO: <Sdfwefewafe@microsoft.com>
550 5.4.1 Sdfwefewafe@microsoft.com: Recipient address rejected: Access Denied
RSET
250 2.0.0 Resetting
quit
221 2.0.0 Service closing transmission channel
--------------------------
Connecting rcdn-mx-01.cisco.com:25
220-rcdn-inbound-c.cisco.com ESMTP
220 Connections from the host u15704135.onlinehome-server.com (50.21.180.153), originating from SenderBase Network Owner ID: 3129346, are being throttled due to a low or non-existent SenderBase Reputation Score. See http://www.senderbase.org for more information.
EHLO rootever.com
250-rcdn-inbound-c.cisco.com
250-8BITMIME
250-SIZE 33554432
250 STARTTLS
MAIL FROM: <user@rootever.com>
250 sender <user@rootever.com> ok
RCPT TO: <sfwefrwefsd@cisco.com>
250 recipient <sfwefrwefsd@cisco.com> ok
RSET
250 reset
quit
221 rcdn-inbound-c.cisco.com
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