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Article View: comp.mail.misc
Article #105

Re: What's the "magic" of a Unix mailbox file?

#105
From: Neil Rickert
Date: Thu, 06 Aug 1992 15:35
33 lines
1947 bytes
In article <BsKE8J.2w2@breeze.rsre.mod.uk> heading@breeze.rsre.mod.uk (Anthony Heading) writes:

>> From <user>@<host> <date>

>I tried to make sendmail preserve usernames when present, so that
>lines like:
>
>From Anthony <heading@hermes.mod.uk> Thu Aug  6 14:34:35 1992

  Just a moment - this is just plain WRONG!

  There are two classes of addresses associated with an email message.
The HEADER addresses, which appear on "To:", "Cc:", and "From:" headers
(and a few others) are designed for human use as well as machine uses.
But the ENVELOPE addresses are used purely for transmission and similar
purposes, and the user name has no place in envelope addresses.  The
"From " line contains an envelope address.  It is, for example, the
sender envelope address when mail is forwarded via UUCP.  The format
you are using is wrong for that.  Software has every right to complain,
and perhaps some software might even interpret the '<' and '>' as
input/output redirection.

  Keep your user names in their proper place.

>Emacs RMAIL for example decided that this wasn't valid, and
>in fact seems to have quite a complicated regexp to match this
>line, demanding it seemed that there was only one word before the
>date part started for example...
>
>Is RMAIL correct to be so fussy? Or is it the case, as mrex
>writes above, that "^From " is the correct delimiter?

  RMAIL is absolutely correct.
Technical Details
Message-ID: <1992Aug6.153531.30349@mp.cs.niu.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!olivea!decwrl!sdd.hp.com!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!mp.cs.niu.edu!rickert
References: <1992Aug4.205537.26710@spectrum.xerox.com> <4nxmzv9_@aix01.rz.fht-mannheim.de> <BsKE8J.2w2@breeze.rsre.mod.uk>

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Path: arc1-ca.pugleaf.net!sparky!uunet!olivea!decwrl!sdd.hp.com!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!mp.cs.niu.edu!rickert
From: rickert@mp.cs.niu.edu (Neil Rickert)
Newsgroups: comp.mail.misc
Subject: Re: What's the "magic" of a Unix mailbox file?
Message-ID: <1992Aug6.153531.30349@mp.cs.niu.edu>
Date: 6 Aug 92 15:35:31 GMT
References: <1992Aug4.205537.26710@spectrum.xerox.com> <4nxmzv9_@aix01.rz.fht-mannheim.de> <BsKE8J.2w2@breeze.rsre.mod.uk>
Organization: Northern Illinois University
Lines: 33