[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: MIME attachment killer won't work
Thank you all. I think I got this one figured out by doing a slight variation on the previous one:
# Remove v-cards
:0BD fwb
* ^begin 600 .*.vcf
| sed -e '/^begin 600 .*.vcf/,/^end$/d'
On Tue, Jan 11, 2000 at 11:41:26AM +0000, Jon Walthour wrote:
> Thank you! Thank you! Thank you! It worked perfectly (well, almost so). I only had to change on small thing. Instead of testing for WINMAIL\.DAT, it would only match on winmail\.dat. I guess procmail is case-sensitive? In any case, thank you so much.
>
> One last question, and then I'll stop beating this dead horse. What would you do with a similar sort of attachment: a v-card. It looks similar to the WINMAIL.DAT attachment (which, as you say, aren't MIME attachments at all, but uuencoded attachments. Anyway, it looks like this:
>
> begin 600 <somebody's name>.vcf
> M0D5'24XZ5D .... (more glibberish)
>
> In procmail-ese, how would you say, in effect "Find 'begin 600 *.vcf' then cut everything out until you get to a line that just says 'end'" (The * in this case being a wildcard)?
>
> Again, thanks so much for all your help!
>
> On Tue, Jan 11, 2000 at 02:11:19AM -0500, era eriksson wrote:
> > On Mon, 10 Jan 2000 20:18:16 -0500, Jon Walthour <jonw@one.net> wrote:
> > > I'm sorry if this question has been asked a million times, but I'm
> > > new to this list and really need an answer. Like I'm sure many
> > > other Unix mail users, I'm constantly getting these WINMAIL.DAT
> > > email attachment from Microsoft Mail users. I'm trying to get
> > > procmail to simply cut them out. According to Jari Aalto's website,
> > > it's possible with his recipes--especially pm-jamime-kill.rc.
> >
> > If it's a WINMAIL.DAT file, my guess would be that it's not a MIME
> > attachment at all. Microsoft has changed this a few times and I've not
> > really been paying attention, but my picture of the Criminal History
> > of the Redmond Juggernaut goes something like this:
> >
> > 1995 "tnef" data in an uuencoded WINMAIL.DAT "attachment"
> > 1996 "tnef" data as application/octet-stream MIME attachment
> > 1997 "tnef" data as application/ms-tnef (or whatever) MIME attachment
> >
> > The years are probably wrong, but roughly correspond to different
> > releases of -- in this respect -- increasingly less broken (but my
> > ghod, are they still broken) versions of M$ Mail and Outkook and
> > Outkook Pro or whatever the even more broken version is called.
> >
> > A MIME attachment, which is what Jari's module can handle (as far as I
> > know) looks roughly like this:
> >
> > --0123456789stringofgibberish
> > Content-Type: application/x-ms-brokenness
> > Content-Transfer-Encoding: base64
> >
> > ZXZlbiBtb3JlIGdpYmJlcmlzaCwgdG8gYm9vdA== ...
> >
> > whereas a uuencode "attachment" is just smack dab somewhere in the
> > middle of the rest of the message, althought the WINMAIL.DAT thing
> > will always be at the end, but still not structurally in its own MIME
> > part.
> >
> > begin 600 WINMAIL.DAT
> > ?06YO=&AE<B!T>7!E(&]F(&=I8F)E<FES:"!H97)E"@`` ...
> >
> > As you can see, the character sets used in the different encodings are
> > slightly different, too.
> >
> > Anyway, if this diagnosis looks like it's a move in the right
> > direction, try this recipe:
> >
> > :0BD fwb
> > * ^begin 600 WINMAIL\.DAT$
> > | sed -e '/^begin 600 WINMAIL\.DAT$/,/^end$/d'
> >
> > Perhaps you also want to add some sort of logging which details what
> > happened to this wonderful "tnef" data and who did it.
> >
> > (For what it's worth, I believe it's some sort of overlay which lets
> > you render the text in richtext format -- fonts, sizes, etc -- if you
> > can decode the gibberish. I have a hunch it doesn't have decent
> > documentation, though, and of course, it's still annoying if you don't
> > have a client which can use this information, or oppose the tendency
> > to send all sorts of fluff instead of plaintext mail messages the way
> > ghod intended.)
> >
> > Incidentally, you may also want to look for old messages about this in
> > at <http://www.rosat.mpe-garching.mpg.de/mailing-lists/procmail/>
> > which is Achim Bohnet's searchable archive of this list.
> >
> > (Actually, a quick search for winmail.dat didn't turn up anything for
> > killing uuencoded attachments, only base64 MIME attachments.)
> >
> > Hope this helps,
> >
> > /* era */
> >
> > --
> > Too much to say to fit into this .signature anyway: <http://www.iki.fi/era/>
> > Fight spam in Europe: <http://www.euro.cauce.org/> * Sign the EU petition
>
> --
> Thanks,
>
> Jon Walthour, BSC
> Cincinnati, Ohio
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> The 21st century begins on January 1, 2001
--
Thanks,
Jon Walthour, OCP
Oracle Database Administrator
(513) 241-5949 x271 (office)
(513) 649-9488 (pager)
6499488@skytel.com
LÛCRUM INCORPORATED
Digital Strategies That Improve Your Bottom Line
1999 Inc. 500 Award Winner
One of America's Fastest Growing Companies