Liviu Daia wrote:

quoted text
>>     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