[Mimedefang] What is the best/fastest/easiest way to use greylisting?

[mike campbell]

I've been running mimedefang for a couple of years successfully with it 
interfacing to clamav and spamassassin. I have decided to try and add in 
greylisting as well and upon checking around I see several places that 
document how to do this:

http://www.mimedefang.org/kwiki/index.cgi?Greylisting
http://whatever.frukt.org/mimedefangfilter.text.shtml
http://mark.tranchant.co.uk/notes/greylist
http://www.golden-gryphon.com/software/misc/mimedefang-filter.html

and from the original design for greylisting there is a perl milter at 
http://projects.puremagic.com/greylisting/downloads.html

All of these look very similar but having never tried greylisting before 
was wondering what is the best/fastest/easiest implementation for use 
with MD?

Any hints or tips for implementation would greatly be appreciated.
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Mike Campbell | Principal Support Engineer | 407.458.2313
Oracle Support Services
7453 TG Lee Blvd. | Orlando, FL 32822