James Robertson wrote:
I sent this a little while ago and had some helpful responses but I had
an idea last night and would like some feedback.
consider starting a new thread. most people will miss this old thread.
Its easiest if I use an example.
[EMAIL PROTECTED] is valid email address
[EMAIL PROTECTED] is a spammer address.
[EMAIL PROTECTED] sends and email to [EMAIL PROTECTED]
The message is held with a timeout before its is purged from the hold
queue e.g 5 days becuase the domain is hotmail.com. and a identifier is
assiciated with the message somehow.
An email message is sent back to the address asking them to resend a
message with a key (specific words or characters in the subject line,
body or both).
The sender responds with the requested info.
The message is received and processed perhaps with procmail or similiar
which matches the key to the identifier and then releases the message
and marks the hotmail address as a valid one so it does not hold any
further emails from [EMAIL PROTECTED]
[EMAIL PROTECTED] sends junk mail to [EMAIL PROTECTED]
The message is held becuase the domain is hotmail.com and a identifier
is assiciated with the message.
An email message is sent back to the address asking them to resend a
message with a key (specific words or characters in the subject line or
body or both).
The spammer doesn't respond to the request and the mail is help for 5
dyas before being purged.
if spammer forges my address, I will respond so that you get a lot of
spam. There is no reason pass you junk filtering to me.
if spammer uses a trap as sender, you'll end up in a blacklist.
This has a name: Challenge-Response (C/R). it's bad. spammers forge
sender addresses, so notifying the forged sender is spam.
do not delegate your spam filtering to strangers.
http://www.spamcop.net/fom-serve/cache/329.html
http://www.politechbot.com/p-04746.html
see also the links on:
http://spamlinks.net/filter-cr.htm#issues-harmful
It could probably use a web interface running on the mail server the
sender could go to and even use a captcha or something........
I'm not sure if anything like this exists already and if it does could
someone please direct me to it.
Unfortunately I'm not a programmer (but I'm learning) so implementing
this would be a very long and laborious task for me.
Any suggestions or advise appreciated.
Fix your Bayes. having BAYES_00 trigger on pharma junk is a sign that
your Bayes data is corrupted. empty your Bayes db and start again. it is
possible that your AWL is polluted too. disable AWL until you are
confortable that you can make it work correctly. and train your Bayes.
it should yield BAYES_99 on such crap.
Followup on the spamassassin-users list.
