2010/9/17 Steve Freegard <st...@stevefreegard.com>
> Hi All, > > Recently I've been getting a bit of filter-bleed from a bunch of spams > injected via Hotmail/Yahoo that contain shortened URLs e.g. bit.ly/foothat > upon closer inspection would have been rejected with a high score if > the real URL had been used. > > To that end - it annoyed me enough to write a plug-in that decodes the > shortened URL using an HTTP HEAD request to extract the location header sent > by the shortening service and to put this into the list of extracted URIs > for other plug-ins to find (such as URIDNSBL). > > On the messages I tested it with - it raised the scores from <5 to >10 > based on URIDNSBL hits which is just what I wanted. > > Hopefully it will be useful to others; you can grab it from: > > http://www.fsl.com/support/DecodeShortURLs.pm > http://www.fsl.com/support/DecodeShortURLs.cf > > Kind regards, > Steve. > > Thanks Steve! i will test it later!
