[PLUG] Rejecting spam at the front door

[Rich Shepard]

  While we're on the subject, has anyone crafted a regex that accepts only
properly-spelled/formed words? For example, is there a way to reject a
subject line where a "one" has been substituted for an "ell" or a "zero" for
an "oh"?

  As our MTA filters become more efficient the spammers mangle the words in
the subject; sometimes so effectively that not only does it make it past
postfix but I cannot figure out what they're writing either.

Thanks,

Rich

-- 
Dr. Richard B. Shepard, President
Applied Ecosystem Services, Inc. (TM)
<http://www.appl-ecosys.com>