[Spamassassin Wiki] Update of "OtherTricks" by PaulRoub

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The following page has been changed by PaulRoub:
http://wiki.apache.org/spamassassin/OtherTricks

The comment on the change is:
Noted milter-greylist option for sendmail

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      * mails with high spam scores are rejected regardless (no greylisting) 
  http://marc.merlins.org/linux/exim/sa.html
  
+ '''milter-greylist''' (http://hcpnet.free.fr/milter-greylist/) is an excellent greylisting solution for Sendmail.  I've been using it for almost two years now, and the difference in the amount of mail SpamAssassin has to worry about is amazing.
+ 
  === Long delay (high latency) ===
  
  I've seen that after changing my mail system from an old 486 with a very slow Internet connection (about 80 ms) to a fast server with just 5 to 10 ms, I got much much more spammail. Obviously spammers don't have much time to deliver one single mail. So it might help for a server which receives just some mails a day (maybe less than 200 a day) to increment the delay. I've seen no way to do this with iptables or ipfilter but maybe someone has an idea for this.