rfc821.txt

中文RFC文档

S: RCPT TO:<@USC-ISIE.ARPA:[e-mail]>

R: 250 OK

S: RCPT TO:<@USC-ISIE.ARPA:[e-mail]>

R: 250 OK

S: RCPT TO:<@USC-ISIE.ARPA:[e-mail]>

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:<[e-mail]>

R: 250 OK
　
S: RCPT TO:<[e-mail]>

R: 251 User not local; will forward to <[e-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 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:<[e-mail]>

R: 250 OK

S: RCPT TO:<[e-mail]>

R: 251 User not local; will forward to <[e-mail]>
　
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:<[e-mail]>

R: 250 OK
　
S: RCPT TO:<[e-mail]>

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:<[e-mail]>

R: 250 OK
　
S: RCPT TO:<[e-mail]>

R: 250 OK

S: RCPT TO:<[e-mail]>

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:<[e-mail]>

R: 250 OK

S: RCPT TO:<[e-mail]>

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

行
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 Internet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

域
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
参考资料
   [1]  ASCII

      ASCII, "USA Code for Information Interchange", United States of
      America Standards Institute, X3.4, 1968.  Also in:  Feinler, E.
      and J. Postel, eds., "ARPANET Protocol Handbook", NIC 7104, for
      the Defense Communications Agency by SRI International, Menlo
      Park, California, Revised January 1978.

   [2]  RFC 822

      Crocker, D., "Standard for the Format of ARPA Internet Text
      Messages," RFC 822, Department of Electrical Engineering,
      University of Delaware, August 1982.

   [3]  TCP

      Postel, J., ed., "Transmission Control Protocol - DARPA Internet
      Program Protocol Specification", RFC 793, USC/Information Sciences
      Institute, NTIS AD Number A111091, September 1981.  Also in:
      Feinler, E. and J. Postel, eds., "Internet Protocol Transition
      Workbook", SRI International, Menlo Park, California, March 1982.

   [4]  NCP

      McKenzie,A., "Host/Host Protocol for the ARPA Network", NIC 8246,
      January 1972.  Also in:  Feinler, E. and J. Postel, eds., "ARPANET
      Protocol Handbook", NIC 7104, for the Defense Communications
      Agency by SRI International, Menlo Park, California, Revised
      January 1978.

   [5]  Initial Connection Protocol

      Postel, J., "Official Initial Connection Protocol", NIC 7101,
      11 June 1971.  Also in:  Feinler, E. and J. Postel, eds., "ARPANET
      Protocol Handbook", NIC 7104, for the Defense Communications
      Agency by SRI International, Menlo Park, California, Revised
      January 1978.

   [6]  NITS

      PSS/SG3, "A Network Independent Transport Service", Study Group 3,
      The Post Office PSS Users Group, February 1980.  Available from
      the DCPU, National Physical Laboratory, Teddington, UK.

August 1982                                                      RFC 821
Simple Mail Transfer Protocol                                           

   [7]  X.25

      CCITT, "Recommendation X.25 - Interface Between Data Terminal
      Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for
      Terminals Operating in the Packet Mode on Public Data Networks,"
      CCITT Orange Book, Vol. VIII.2, International Telephone and
      Telegraph Consultative Committee, Geneva, 1976.


RFC821  SIMPLE MAIL TRANSFER PROTOCOL                          RFC821 简单邮件传输协议（SMTP）

1


1
ＲＦＣ文档中文翻译计划