On Tue, Sep 28, 2004 at 02:01:24PM +0200, Michelle Konzack wrote:
curently I have a blackist of more then 1400 E-Mails and most are
Anti-Anti-SPAM spamers... :-/
Now I have encountered that many of them does not send anymore and
now I like to make it better... by using timestamps for each E-Mail
I blacklist.
Because ONE big list is to much to load, I was thinking, I create
a folder where I put one file per E-Mail using the E-Mail-Address
as the filename. because i havbe non convince to "ctime", "mtime"
and "atime" I like to set the timestamp by using the serial-date
like:
echo `date +s%` > $HOME/.procmail/blacklist/spam(_at_)spam(_dot_)com
Then if a E-Mail comes in, it will be checked whether it is in the
blacklist-cache or not. If it is there I need to set the NEW serial-
date and send the message to /dev/null otherwise it is delivered normal.
Second I run a daily cron job which check, if one E-Mail-Adress is older
for example 2 month and if yes, it will be deleted.
Question: Does anyone have done this, and if yes, HOW ?
Yes. I do it, and it works well. I have posted about it a couple of times,
but with reference to whitelists rather than blacklists. The concept is
exactly the same. I've used the system for about 1.5 years with no
downside that I see. It' easy to maintain, easy to view, and it's
self-regulating. I am about to implement a similar schema for my
spamtraps so the current most effective ones run first.
Just searched the archives: "dallman whitelist hash"
This is the article I was thinking of -- though other hits from that
search augment the information:
http://www.xray.mpe.mpg.de/mailing-lists/procmail/2003-12/msg00086.html
Dallman
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