URL:
<http://savannah.nongnu.org/bugs/?20142>
Summary: strip backslash in rfc822 From: field
Project: MHonArc
Submitted by: jab
Submitted on: Sunday 06/10/2007 at 19:19
Category: Resource Variables
Severity: 3 - Normal
Item Group: Incorrect Behavior
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Operating System: Linux
Perl Version: v5.8.4
Component Version: 2.6.16
Fixed Release:
_______________________________________________________
Details:
It is not uncommon to have an escaped character in the From: field of an
email header. I've noticed this mainly with parentheses and quotation marks,
e.g. \( \) \". Out of the last 75000 mails, approximately one in 500 have
this characteristic. Mhonarc leaves the backslash in and produces messages
that look a little funnny. Especially when one person posts a lot to a list,
and each time his or her name is littered with extra backslashes in the index
pages.
I looked over RFC822 and had a tough time deciding whether this practive is
legal or not, but I can say it is fairly common and I think it makes sense to
strip out backslashes in the FROMNAME resource variable. Or maybe only do it
for our friends \" \( and \)
I also looked at Subject: lines, and in those cases backslashes are used all
over the place in a meaninful way, so probably should not be stripped. I'm
happy to suppy additional data.
http://www.mail-archive.com/ubuntu-bugs(_at_)lists(_dot_)ubuntu(_dot_)com/msg121886.html
gen7:/var/mail# cat archive2 | grep ^From: | wc -l
73667
gen7:/var/mail# cat archive2 | grep ^From: | grep '\\' | wc -l
164
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