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From: "Dave Korn" <dk AT artimi DOT com>
To: <cygwin AT cygwin DOT com>
Subject: RE: [OT] PCYMTNQREAIYR, it really works.
Date: Thu, 23 Sep 2004 16:19:12 +0100
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In-Reply-To: <20040923143941.GI16115@trixie.casa.cgf.cx>
Message-ID: <NUTMEGFhwgGgzaUTbNe0000006b@NUTMEG.CAM.ARTIMI.COM>
X-OriginalArrivalTime: 23 Sep 2004 15:19:12.0220 (UTC) FILETIME=[AE1C69C0:01C4A180]
Note-from-DJ: This may be spam

> -----Original Message-----
> From: cygwin-owner On Behalf Of Christopher Faylor
> Sent: 23 September 2004 15:40

> On Thu, Sep 23, 2004 at 01:14:39PM +0100, Dave Korn wrote:
> >_Now_ is it on-topic?
> 
> :-)
> 
> I have to point out that I'm getting spam to some new accounts which
> have only been used to send email to mailing lists which 
> munge addresses
> with the "me at cgf dot cx" method, so this isn't foolproof.

  Well, you've only got five chars of entropy in that one..... wouldn't take
long to fall to a dictionary attack!

> <idle speculation>
> Hmm.  I wonder if I just replaced all of the '@'s with a png 
> of an '@',
> if that would foil the spammers.
> <pause>
> Nope.  Wouldn't work for the text archives.
> </idle speculation>

  How about a big ascii-art one then?  THaT WuLd BE SOOooOO B1FF!!1! AND
K00L!!1!2!

> I *really* have to dust off the filter that I was working on which
> removed the host part of "unimportant" email addresses before they got
> to the archives.

s/@.*\.\(com|co|net|org|mil|gov\)\(\...\)\+/@_SOMEWHERE_\1\2/g

or with cmd-line escapes, 

sed -e "s/@.*\.\(com\|co\|net\|org\|mil\|gov\)\(\...\)\?/@_SOMEWHERE_\1\2/g"

...or something vaguely like that?  Replace the (\...\) with a list of all
the two letter country codes, replace the .* with something that at least
denies whitespace, and you're nearly there.  Oh, and I suppose you could
fiddle it slightly so that the TLD is optional if the two letter country
code is found.  Or you could just add 'cgf' to the list of TLDs.....

    cheers, 
      DaveK
-- 
Can't think of a witty .sigline today....


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