On Thu, Aug 19, 2004 at 07:27:57PM -0700, David Lawless wrote:
Now I define a false positive as when the sender of a bounced
message calls me on the telephone. If they are too clueless or
unmotivated to comprehend the bounce message and/or find my
phone number on the web-site, I didn't want to hear from them
anyway.
I'm glad this works out for you. It wouldn't work out for me, since a
prospective customer how tries and contact me might be thinking 'oh what the
hell, i'll just look for someone else'.. I don't want to run that risk, being a
starting entrepeneur and all..
One of the CPAN 'whois' modules normalizes most of the standard
fields into a nifty structure. This will be useful for checking
the registration dates and registrar. The rest I'll do ad-hoc.
For example, private registration domains at Network solutions
have a contact address like so:
aq3zb2cp7bs(_at_)networksolutionsprivateregistration(_dot_)com
That's pretty easy to match out with a perl regex. It's obvious
that spammers will gravitate to the ultra-low-cost registrars
like Godaddy. I don't know ANYONE I want to correspond with who
needs to buy their domain for $9.95 ($3 for bulk purchased
domains; I'll bet $1 can be negotiated if you're willing to buy
1000+ domains). If one turns up, I can whitelist it after giving
the correspondent hard time for registering with the bums! A
fairly limited number of registrars fall into this category; I'd
guess about ten or twenty at most--a manageable size for a
blacklist. Happily it costs about $50k to $100k, takes several
months, and requires complete disclosure of one's identity to
become a registrar. It seems rather unlikely that throwaway
registrars will ever develop as a problem.
I'm glad this works out for you. I personally receive mail from people all over
the world (except maybe the usa, which only sends me spam), so this wouldn't
quite work out for me I'm afraid.
Koen
--
K.F.J. Martens, Sonologic, http://www.sonologic.nl/
Networking, embedded systems, unix expertise, artificial intelligence.
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