[imp] Attachment corruption due to incorrect mime type

[Tornoci Laszlo]

Hi,

my problem is, some binary files attached get recognized as plain/text, 
and as a result are coded as quoted-printable. This leads to corruption 
of the files, as explained here:
http://lists.horde.org/archives/imp/Week-of-Mon-20060424/045099.html

If I make a binary file like:
dd bs=1024 count=10 </dev/urandom > 10kB
that's full of nonASCII bytes, 'file' says data:

$ file 10kB
10kB: data

If I send a message through IMP with '10kB' attached (browser:
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.10) Gecko/2009042708 
Fedora/3.0.10-1.fc10 Firefox/3.0.10)

it gets attached as plain/text coded as quoted-printable (and gets 
corrupted).

What really determines the mime-type? Does IMP accept what the browser 
suggests? (If yes, that's a problem of Firefox). Or does IMP look at the 
file and may override what the browser suggested? (Then it's IMP's fault).

By the way, I have installed the fileinfo PECL thing, as suggested.

test.php returns:
# MIME Magic Support (fileinfo): Yes
# MIME Magic Support (mime_magic): Yes

What is causing the problem?

					Yours: Laszlo