17 Nov
2002
17 Nov
'02
3:28 p.m.
On Fri, Nov 15, 2002 at 03:20:49PM -0600, Jeffrey Sharp wrote:
On Friday, November 15, 2002, Eric Smith wrote:
How does the confirmation process work? Sending unknown senders an email
to identify themself als "human beings with a legitimate reason to send
you email" or do you confirm them by hand? How do you identify the
sender? Checking From: won't work, this headerline has been faked since
the invention of SMTP. You might take a look at spamfilters employing
bayesian (sp?) filters, they seem to work surprisingly well.
On Linux (and Unix), procmail is commonly used
for filtering, and is quite
flexible
Procmail + formail = excellent. I used them to build a system that makes
unknown senders go through a confirmation process. There are other packages
out there to do this, but a procmail solution was the easiest to implement
for me. It's basically a way to rid myself of spam forever. The last thing I want is to be digging through the
backup file and find
something important that was not delivered.
Thats why my simple .procmail rules for catching (some) spam _never_
drop mail altogether, but deliver into a dedicated folder, appropriately
named "SPAM" which gets checks (just From: and Subject: lines) by hand
once a week.
Regards,
Alex.
--
"Opportunity is missed by most people because it is dressed in overalls and
looks like work." -- Thomas A. Edison