RFC821-简单邮件传输协议（SMTP）中文版 - 3

本文出自: 作者: (2001-11-23 09:08:00)
第二步：转发主机到目的主机
R: 220 BBN-VAX.ARPA Simple Mail Transfer Service Ready
S: HELO USC-ISIE.ARPA
R: 250 BBN-VAX.ARPA
　
S: MAIL FROM:<@USC-ISIE.ARPA:JQP@MIT-AI.ARPA>
R: 250 OK
　
S: RCPT TO:<Jones@BBN-VAX.ARPA>
R: 250 OK
　
S: DATA
R: 354 Start mail input; end with <CRLF>.<CRLF>
S: Received: from MIT-AI.ARPA by USC-ISIE.ARPA ;
2 Nov 81 22:40:10 UT
S: Date: 2 Nov 81 22:33:44
S: From: John Q. Public <JQP@MIT-AI.ARPA>
S: Subject: The Next Meeting of the Board
S: To: Jones@BBN-Vax.ARPA
S:
S: Bill:
S: The next meeting of the board of directors will be
S: on Tuesday.
S: John.
S: .
R: 250 OK
　
S: QUIT
R: 221 USC-ISIE.ARPA Service closing transmission channel
    
确认和发送
R: 220 SU-SCORE.ARPA Simple Mail Transfer Service Ready
S: HELO MIT-MC.ARPA
R: 250 SU-SCORE.ARPA
　
S: VRFY Crispin
R: 250 Mark Crispin <Admin.MRC@SU-SCORE.ARPA>
　
S: SEND FROM:<EAK@MIT-MC.ARPA>
R: 250 OK
　
S: RCPT TO:<Admin.MRC@SU-SCORE.ARPA>
R: 250 OK
　
S: DATA
R: 354 Start mail input; end with <CRLF>.<CRLF>
S: Blah blah blah...
S: ...etc. etc. etc.
S: .
R: 250 OK
　
S: QUIT
R: 221 SU-SCORE.ARPA Service closing transmission channel
    
获得和发送邮件 首先确定用户名，然后尝试将邮件发送到用户终端，
当它失败时，发送到用户邮箱。
R: 220 SU-SCORE.ARPA Simple Mail Transfer Service Ready
S: HELO MIT-MC.ARPA
R: 250 SU-SCORE.ARPA
　
S: VRFY Crispin
R: 250 Mark Crispin <Admin.MRC@SU-SCORE.ARPA>
　
S: SEND FROM:<EAK@MIT-MC.ARPA>
R: 250 OK
　
S: RCPT TO:<Admin.MRC@SU-SCORE.ARPA>