@Ikeb, I don't disagree agree at all about all the surely's... I was floating an idea. You are right, the possibilities are so endless. Talking of which, I just digested the thread ( /postx8096-0-0.html) about recognising the fake HTML code splitting up a word, and how endless that could become.
By the way, the link to Andrey's site mentioned in that thread has been removed at least temporarily because of the GAIN/gator problem, and they are contacting Andrey about it.

I've been getting light font hits, so thanks @all for this useful discussion.

Ghol,

Concerning your thoughts about matching background colors to font colors.

While you more than likely could not write a RegExp that would find closely matching colors used for the background and the actual font, there is a good possibility that a filter could be written that would find those cases where the body color of the message was set at one certain color.....and a subsequent font color was set to exactly that color.

Body color=#CECECE
Font color=#CECECE

The problem woth doing that is that the Spammer could easily offset the font color by one increment from the body color:

Body color=#CECECE
Font color=#CFCECE

That would be very difficult to trap using RegExp.

Here is the basis for a RegExp that will trigger when the body color has been set to a specific color....and a font color found later in the message is made to match exactly that body color.

@Denn998: and have you been knighted yet?

Thanks: I find expert's examples extremely valuable in learning myself.

Don't quit!

Hi..Would the filter read?... The Body Contains RegExpr <font [^>]*? color=(3D)?["]?(white|#(F[6-9A-F]){3})["]?(?# very light colored fonts )

As that is how I have it...I put in the name of ColorKiller to help me see what filter is used..

[enabled],ColorKiller,ColorKiller,33023,AND,Delete,Body,containsRE,"<font [^>]*? color=(3D)?[""]?(white|#(F[6-9A-F]){3})[""]?(?# very light colored fonts )"