From: joda@pdc.kth.se (Johan Danielsson)
Cc: Alan Shutko <ats@acm.org>, ding@gnus.org
Subject: Re: Default mail address
Date: 21 Jun 1997 15:48:53 +0200 [thread overview]
Message-ID: <xofg1ucjcca.fsf@blubb.pdc.kth.se> (raw)
In-Reply-To: Justin Sheehy's message of 20 Jun 1997 21:38:40 -0400
Justin Sheehy <dworkin@ccs.neu.edu> writes:
First some background.
4.4.2. SENDER / RESENT-SENDER
This field contains the authenticated identity of the AGENT
(person, system or process) that sends the message. It is
intended for use when the sender is not the author of the mes-
sage, or to indicate who among a group of authors actually
sent the message. If the contents of the "Sender" field would
be completely redundant with the "From" field, then the
"Sender" field need not be present and its use is discouraged
(though still legal). In particular, the "Sender" field MUST
be present if it is NOT the same as the "From" Field.
The Sender mailbox specification includes a word sequence
which must correspond to a specific agent (i.e., a human user
or a computer program) rather than a standard address. This
indicates the expectation that the field will identify the
single AGENT (person, system, or process) responsible for
sending the mail and not simply include the name of a mailbox
from which the mail was sent. For example in the case of a
shared login name, the name, by itself, would not be adequate.
The local-part address unit, which refers to this agent, is
expected to be a computer system term, and not (for example) a
generalized person reference which can be used outside the
network text message context.
Since the critical function served by the "Sender" field is
identification of the agent responsible for sending mail and
since computer programs cannot be held accountable for their
behavior, it is strongly recommended that when a computer pro-
gram generates a message, the HUMAN who is responsible for
that program be referenced as part of the "Sender" field mail-
box specification.
> Software that replies to the Sender: and ignores the From: header is
> broken and should not be catered to.
4.4.4. AUTOMATIC USE OF FROM / SENDER / REPLY-TO
For systems which automatically generate address lists for
replies to messages, the following recommendations are made:
o The "Sender" field mailbox should be sent notices of
any problems in transport or delivery of the original
messages. If there is no "Sender" field, then the
"From" field mailbox should be used.
With Gnus I get a sender that looks like `joda@blubb.pdc.kth.se',
which is not a mailbox; blubb.pdc.kth.se does not have an MX record
and does not run any kind of MTA.
What is so good about adding a useless `address' as sender of the
message?
/Johan
next prev parent reply other threads:[~1997-06-21 13:48 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-06-20 17:50 Ben Gertzfield
1997-06-20 19:19 ` Default mail address (duh, solved) Ben Gertzfield
1997-06-20 19:53 ` Default mail address Justin Sheehy
1997-06-20 23:39 ` Alan Shutko
1997-06-21 1:38 ` Justin Sheehy
1997-06-21 13:48 ` Johan Danielsson [this message]
1997-06-21 14:40 ` Per Abrahamsen
1997-06-21 14:52 ` Johan Danielsson
[not found] ` <wkafkislf9.fsf@peorth.gweep.net>
1997-06-22 17:18 ` Hrvoje Niksic
[not found] ` <wkiuz5wdrl.fsf@peorth.gweep.net>
1997-06-23 18:10 ` Johan Danielsson
1997-06-23 12:44 ` Per Abrahamsen
1997-06-21 2:00 ` Hrvoje Niksic
1997-06-21 9:01 ` Russ Allbery
1997-06-25 4:52 ` Roderick Schertler
1997-06-26 18:58 ` Steven L Baur
1997-06-23 9:40 ` Robert Bihlmeyer
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