[Greylist-users] What timeouts should be used with greylisting

[martin dempsey]

On the subject of delay times since it seems many systems use 
retry timers with a granularity of 15min, 30min, 1hr, etc. I've seen many 
many systems miss the window by seconds.

One system retried every four hours and missed by anywhere from 1.5 minutes 
to 6 seconds for over two days until it got lucky and made it by 3 seconds.

It seems like changing 1hr/4hrs to 55min/4.25hrs would make a significant 
difference.