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RFC 5321 postmaster@ 电子邮件地址强制执行

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RFC 5321 postmaster@ 电子邮件地址强制执行

RFC 822状态：

 6.3.  RESERVED ADDRESS
 
      It often is necessary to send mail to a site, without  know-
 ing  any  of its valid addresses.  For example, there may be mail
 system dysfunctions, or a user may wish to find  out  a  person's
 correct address, at that site.
 
      This standard specifies a single, reserved  mailbox  address
 (local-part)  which  is  to  be valid at each site.  Mail sent to
 that address is to be routed to  a  person  responsible  for  the
 site's mail system or to a person with responsibility for general
 site operation.  The name of the reserved local-part address is:
 
                            Postmaster
 
 so that "Postmaster@domain" is required to be valid.
 
 Note:  This reserved local-part must be  matched  without  sensi-
        tivity to alphabetic case, so that "POSTMASTER", "postmas-
        ter", and even "poStmASteR" is to be accepted.

同样地，RFC 5321状态：

4.5.1.  Minimum Implementation

[...]

Any system that includes an SMTP server supporting mail relaying or
delivery MUST support the reserved mailbox "postmaster" as a case-
insensitive local name.  [...]  The requirement to accept mail for
postmaster implies that RCPT commands that specify a mailbox for
postmaster at any of the domains for which the SMTP server provides
mail service, as well as the special case of "RCPT TO:<Postmaster>"
(with no domain specification), MUST be supported.

SMTP systems are expected to make every reasonable effort to accept
mail directed to Postmaster from any other system on the Internet.

当网民遇到无法正常运作的域名时，除了将域名提交给rfc-clueless.org（替换为rfc-ignorant.org)？

答案1

不，无论你如何定义“正确”，你都无法强迫其他人“正确”地运行他们的邮件服务器。你可以尝试向其他常用地址或你在他们的网站上找到的任何地址发送邮件（如果他们有的话）。如果你愿意，你可以拒绝与他们进行邮件交易，但除非你是谷歌或类似的大公司，否则这样做更有可能让你的用户敲门而入，而不是让他们解决他们的问题。

现在，就邮政局长地址而言，我怀疑您会发现很多域名都没有正确执行 - 众所周知的地址可能是大量垃圾邮件的目标，有些地方会将其关闭，而不是浪费时间在垃圾邮件中寻找每月或更少的合法电子邮件。

这很可能是错误的做法，但对于很多管理员来说，处理该地址所需的时间似乎太长了，无法带来好处。

答案2

联系该域名的电子邮件管理员并要求他们更改/修复它。

如果您是客户，请将您的业务转移到其他地方。

否则，您能做的不多，因为 RFC 不是法律，而且绝对无法强制执行。

rfc-clueless.org 不适用于举报没有每一个RFC 涵盖，它专门用于报告不与所有其他公共邮件服务器（平等）通信的“公共”电子邮件服务器/域。

答案3

您的问题已经很老了，但是关于这个问题我还有一些说明。

我见过许多情况，其中postmaster@domain是一个有效地址（您会收到200 SMTP服务器响应 的代码RCPT TO:），但到达该地址的所有邮件都会被默默丢弃，因此严格遵循 RFC，但没有人看到邮政局长传入的消息。

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