greylisting with procmail

Ed Greshko Ed.Greshko at greshko.com
Mon Feb 5 20:21:00 UTC 2007


dhottinger at harrisonburg.k12.va.us wrote:
> Anyone using procmail and greylisting with sendmail?

Grey listing, or gray listing, is associated with sendmail or postfix and 
has nothing to do with procmail.  They are independent.  FWIW, grey listing 
has cut incoming spam here by 80%.  Meaning, it doesn't even enter my 
system.  Spamassassin then has only to deal with the rest.  The end result 
here has been a 98.725% reduction in spam...give or take,.




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