RFC821-简单邮件传输协议(SMTP)中文版 - 3

发表于:2007-07-01来源:作者:点击数: 标签:
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@ MI T-AI.ARPA R: 250 OK S: RCPT TO:Jones@BBN-V
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>

R: 450 User not active now

 

S: RSET

R: 250 OK

 

S: MAIL 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

  

上述问题的更有效的作法  

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: SOML FROM:<EAK@MIT-MC.ARPA>

R: 250 OK

 

S: RCPT TO:<Admin.MRC@SU-SCORE.ARPA>

R: 250 User not active now, so will do mail.

 

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

  

  邮件列表 首先,两个邮件列表中的每一个在不同主机的不同会话上扩展,
然后,通过转发主机向列表上的用户发送邮件。

第一步:扩展第一个列表

R: 220 MIT-AI.ARPA Simple Mail Transfer Service Ready

S: HELO SU-SCORE.ARPA

R: 250 MIT-AI.ARPA

 

S: EXPN Example-People

R: 250-<ABC@MIT-MC.ARPA>

R: 250-Fred Fonebone <Fonebone@USC-ISIQ.ARPA>

R: 250-Xenon Y. Zither <XYZ@MIT-AI.ARPA>

R: 250-Quincy Smith <@USC-ISIF.ARPA:Q-Smith@ISI-VAXA.ARPA>

R: 250-<joe@foo-unix.ARPA>

R: 250 <xyz@bar-unix.ARPA>

 

S: QUIT

R: 221 MIT-AI.ARPA Service closing transmission channel

 

第二步:扩展第二个列表  

R: 220 MIT-MC.ARPA Simple Mail Transfer Service Ready  

S: HELO SU-SCORE.ARPA

R: 250 MIT-MC.ARPA

 

S: EXPN Interested-Parties

R: 250-Al Calico <ABC@MIT-MC.ARPA>

R: 250-<XYZ@MIT-AI.ARPA>

R: 250-Quincy Smith <@USC-ISIF.ARPA:Q-Smith@ISI-VAXA.ARPA>

R: 250-<fred@BBN-UNIX.ARPA>

R: 250 <xyz@bar-unix.ARPA>

 

S: QUIT

R: 221 MIT-MC.ARPA Service closing transmission channel

 

第三步:通过转发主机向包括于两个列表中的所有用户发送邮件  

R: 220 USC-ISIE.ARPA Simple Mail Transfer Service Ready

S: HELO SU-SCORE.ARPA

R: 250 USC-ISIE.ARPA

 

S: MAIL FROM:<Aclearcase/" target="_blank" >ccount.Person@SU-SCORE.ARPA>

R: 250 OK

S: RCPT TO:<@USC-ISIE.ARPA:ABC@MIT-MC.ARPA>

R: 250 OK

S: RCPT TO:<@USC-ISIE.ARPA:Fonebone@USC-ISIQA.ARPA>

R: 250 OK

S: RCPT TO:<@USC-ISIE.ARPA:XYZ@MIT-AI.ARPA>

R: 250 OK

S: RCPT

TO:<@USC-ISIE.ARPA,@USC-ISIF.ARPA:Q-Smith@ISI-VAXA.ARPA>

R: 250 OK

S: RCPT TO:<@USC-ISIE.ARPA:joe@FOO-UNIX.ARPA>

R: 250 OK

S: RCPT TO:<@USC-ISIE.ARPA:xyz@BAR-UNIX.ARPA>

R: 250 OK

S: RCPT TO:<@USC-ISIE.ARPA:fred@BBN-UNIX.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 USC-ISIE.ARPA Service closing transmission channel


转发的情况

R: 220 USC-ISIF.ARPA Simple Mail Transfer Service Ready

S: HELO LBL-UNIX.ARPA

R: 250 USC-ISIF.ARPA

 

S: MAIL FROM:<mo@LBL-UNIX.ARPA>

R: 250 OK

 

S: RCPT TO:<fred@USC-ISIF.ARPA>

R: 251 User not local; will forward to <Jones@USC-ISI.ARPA>

 

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 USC-ISIF.ARPA Service closing transmission channel

第一步:尝试第一台主机上的邮箱

R: 220 USC-ISIF.ARPA Simple Mail Transfer Service Ready

S: HELO LBL-UNIX.ARPA

R: 250 USC-ISIF.ARPA

 

S: MAIL FROM:<mo@LBL-UNIX.ARPA>

R: 250 OK

 

S: RCPT TO:<fred@USC-ISIF.ARPA>

R: 251 User not local; will forward to <Jones@USC-ISI.ARPA>

 

S: RSET

R: 250 OK

 

S: QUIT

R: 221 USC-ISIF.ARPA Service closing transmission channel

第二步:尝试第二台主机上的邮箱

R: 220 USC-ISI.ARPA Simple Mail Transfer Service Ready

S: HELO LBL-UNIX.ARPA

R: 250 USC-ISI.ARPA

 

S: MAIL FROM:<mo@LBL-UNIX.ARPA>

R: 250 OK

 

S: RCPT TO:<Jones@USC-ISI.ARPA>

R: 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 USC-ISI.ARPA Service closing transmission channel

许多接收者的情况

R: 220 BERKELEY.ARPA Simple Mail Transfer Service Ready

S: HELO USC-ISIF.ARPA

R: 250 BERKELEY.ARPA

 

S: MAIL FROM:<Postel@USC-ISIF.ARPA>

R: 250 OK

 

S: RCPT TO:<fabry@BERKELEY.ARPA>

R: 250 OK

 

S: RCPT TO:<eric@BERKELEY.ARPA>

R: 552 Recipient storage full, try again in another transaction

 

S: DATA

R: 354 Start mail input; end with <CRLF>.<CRLF>

S: Blah blah blah...

S: ...etc. etc. etc.

S: .

R: 250 OK

 

S: MAIL FROM:<Postel@USC-ISIF.ARPA>

R: 250 OK

 

S: RCPT TO:<eric@BERKELEY.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 BERKELEY.ARPA Service closing transmission channel



名词表:

<CRLF>
回车

<SP>
空格

ASCII
美国标准信息交换码

主机
拥有SMTP进程或邮箱的网络计算机

发送SMTP进程
与接收SMTP进程一起工作的进程。发送SMTP开始传输服务连接,它发出
SMTP命令,接收应答,管理邮件的传送

用户
希望获得邮件服务的人(或以人的名义出现的进程),还有就是邮件的接收者。

会话
当传输信道打开时进行的一系列信息交换

传输服务
可靠的面向流的数据通信服务。例如:NCP,TCP,NITS。

传输信道
在发送SMTP和接收SMTP之间建立的全双工的用于交换命令,应答和邮件内容的信道

字符
可显示字符串


以一个<CRLF>结束的邮件内容

应答
接收SMTP对发送SMTP的通过传输信道发送的的对某一命令的(成功或不成功的)
响应。应答的一般格式是应答码加一段文本。通常情况下,应答码供机器使用,
而文本用于人类用户使用

邮件内容
一系列的字符串,它们符合ARPA Inte.net文本信息格式标准的标准字符集

邮件内容结束标记
标明邮件内容结束的特定字符

邮箱
指定应该向何处发向用户的信件的地址(字符串)。它通常由用户名和主机名表示

命令
由发送SMTP发送到接收SMTP的要求一个邮件服务操作的请求


邮件系统中主机地址字符串的层次式表示

接收SMTP进程
与发送SMTP进程一起工作的进程。它等待通过传输服务建立的连接。它接收发送
SMTP发出的命令,给出应答并执行相应的操作

操作
一个信息由一个接收者发送到另一个或多个接收者的一系列操作  

原文转自:http://www.ltesting.net