Liviu Daia wrote:
That's up to you. The minimum should be large enough to keep away "naive" bots, as it does now. The maximum should be as large as you can afford without being too anti-social. :) Some crap will still pass through anyway.The maximum should also leave plenty of time before expiry. Some mailers use queue backoff algorithms, which means some legitimate messages might never get a chance to pass if the window is too small...
The defaults work very well: See: http://www.ualberta.ca/~beck/nycbug06/spamd/mgp00001.html Hear: http://www.fetissov.org/public/nycbsdcon06/2.4.mp3

