Re: Sender header?

[Stainless Steel Rat <ratinox@peorth.gweep.net>]

* prj@po.cwru.edu (Paul Jarc)  on Thu, 24 May 2001
| A person may have multiple mailboxes, but where does RFC 2822 say that
| a mailbox is an identity?

A mailbox is a mailbox.  A mailbox can be considered to identify its
owner.  That is mine.

[...]
| By your interpretation, the RFC is requiring that every machine that
| sends mail must be usable in a recipient address - i.e., the MX (or A)
| for that name must be configured to accept mail addressed to that
| individual host.  (Otherwise, user-login-name@system-name wouldn't be
| a mailbox of the originator of the message.)  Do you think the authors
| really intended to require this?

Yes, that is exactly what I think.  A records are required for all machines
on the Internet that have anything to do with mail, and MX records should
exist for all such hosts.  Proper mail handling depends on that being the
case.  If your host has neither A nor MX records then it is not configured
correctly.  Trying to make Gnus work around that does not fix the problem.
-- 
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