Re: SMTP proxy for masking credit card numbers

On Tue, Jan 25, 2011 at 6:57 PM, Joseph Sinclair
<plug-discussion@stcaz.net>wrote:

> This is a somewhat unusual requirement, so I couldn't find a quick
> out-of-the-box solution, but there is a way to do this.
> The general-purpose approach is to add a filter on the mail processing
> path. There are many listed here (https://www.milter.org/) that work with
> sendmail, postfix, and similar common MTA's.
> You will probably need to write a regex matcher or a small python script
> (using pymilter http://pymilter.sf.net/) to match anything that looks like
> a credit card and replace the digits with 'x' or similar.
> Keep in mind this will probably be a bit "fuzzy", as there are many things
> that look enough like a credit card number to result in some mistaken
> filtering.
>
> Hunter Kreie wrote:
> > I'm looking for a lightweight, open-source STMP proxy that I can use to
> mask credit card numbers on inbound messages. This is content-manipulation
> or content-scrubbing vs. content-filtering. I'm sure this can be done with
> quite a few packages, but what's your recommendation?
> >
> >
> > ----
> >
> > Fairytale Brownies & friends have raised $30,000 to build a playground
> with KaBOOM! Help us reach our goal of $72,000 by April 2011.
> > Make your donation<http://kaboom.org/donate> and mark on behalf of
> "Fairytale Brownies Playground Project". Thanks for your support!
> >
> > ----
> >
> > Hunter Kreie
> > Information Technology Team Leader
> > Fairytale Brownies
> > 4610 E. Cotton Center Blvd, Suite 100
> > Phoenix, AZ 85040-8988
> >
> > hunter@brownies.com<mailto:hunter@brownies.com>
> > Direct: 602.489.5149
> > Main: 602.489.5100
> > Fax: 602.489.5133
> >
> > Join us on:
> > blog.brownies.com<http://blog.brownies.com/>
> >
> > [cid:image001.jpg@01CBBCA4.973EE110]<
> http://www.facebook.com/pages/Fairytale-Brownies/17947896355?ref=ts>
> [cid:image002.jpg@01CBBCA4.973EE110] <http://twitter.com/ftbrownies>
> [cid:image003.jpg@01CBBCA4.973EE110] <
> http://www.youtube.com/fairytalebrownies>
> >
> >
> >
> > ------------------------------------------------------------------------
> >
> > ---------------------------------------------------
> > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us
> > To subscribe, unsubscribe, or to change your mail settings:
> > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
>
>
> ---------------------------------------------------
> PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us
> To subscribe, unsubscribe, or to change your mail settings:
> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
>


Regex: http://www.regular-expressions.info/creditcard.html

<http://www.regular-expressions.info/creditcard.html>
^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})$.
---------------------------------------------------
PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us
To subscribe, unsubscribe, or to change your mail settings:
http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss