Each credit card type/kind/company or whatever it is called, starts with a
specific series of numbers. So, a RegEx can be created based on this
sequence, but i really don't know how :-0
Regards,
Waseem
On Thu, Feb 28, 2008 at 7:49 AM, Bryan Jarvis <[EMAIL PROTECTED]> wrote:
> To me, there are way too many ways to disguise or write that 16-digit
> number,
> nnnn nnnn nnnn nnnn
> or nnnn-nnnn-nnnn-nnnn
> or any other of a number of ways.
>
> if you were really crafty you could use a substitution code and use
> letters
> in place of digits.
>
> In other words, your filter would only cover a basic case, from what I
> can see.
>
> Bryan
>
>
>
>
> Jim Gronowski wrote:
> > Is it possible to restrict messages based on content so I can prevent
> > any email containing any 16 digit number (such as a credit card
> > number) from being transmitted? If so, can I add a custom error
> > message stating why?
> >
> > Thanks,
> >
> > Jim
> >
>
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