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Subject: |
24.0.50; Rmail 23 uses a broken mailbox format (mboxo) instead of a sane one like mboxrd |
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Date: |
Tue, 06 Jul 2010 12:39:15 -0700 |
There is a family of incompatible mbox formats for storing mail; see
http://homepage.ntlworld.com./jonathan.deboynepollard/FGA/mail-mbox-formats.html
for all the details.
Examining unrmail.el from Gnu emacs 24.0.50.1 (lines 228-231):
;; ``Quote'' "\nFrom " as "\n>From "
;; (note that this isn't really quoting, as there is no requirement
;; that "\n[>]+From " be quoted in the same transparent way.)
clearly shows that Rmail 23 is using the mboxo format.
Unfortunately, this is known to be a bad format because it
irreversibly alters messages. I strongly recommend switching to a
format like mboxrd, which does not have this problem.
(In particular, any line in a message body starting with "From " is
changed to ">From " in a nonreversible manner; this will screw up MIME
attachments, among other things, with nonzero probability.)
- Mark
PS, the documentation needs to explain which mbox format is used, rather
than saying "the standard mbox format", of which there is no such thing.
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--- Begin Message ---
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Subject: |
Re: bug#6574: 24.0.50; Rmail 23 uses a broken mailbox format (mboxo) instead of a sane one like mboxrd |
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Date: |
Thu, 06 Dec 2012 23:44:55 -0500 |
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User-agent: |
Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) |
Version: 24.4
Mark Lillibridge wrote:
> Examining unrmail.el from Gnu emacs 24.0.50.1 (lines 228-231):
>
> ;; ``Quote'' "\nFrom " as "\n>From "
> ;; (note that this isn't really quoting, as there is no requirement
> ;; that "\n[>]+From " be quoted in the same transparent way.)
>
> clearly shows that Rmail 23 is using the mboxo format.
Unrmail has used mboxo when converting from Babyl to mbox since forever;
it's not something new that appeared in 23. I think the lack of comments
over the years indicates this is not a big deal.
However, I agree that mboxrd is better so I made unrmail default to
that, with an option unrmail-mbox-format that you can set to mboxo or
mboxrd.
Rmail itself (as opposed to unrmail) does not care about mboxo or
mboxrd, with the exception of the display of non-MIME messages.
I added a similar option rmail-mbox-format for that.
(http://debbugs.gnu.org/9841 remains as a separate issue at this time)
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