Milter-greylist

The milter crashed twice more on two different machines, so I switched 
to using internet sockets.  There have not been anymore crashes.  I've 
had this issue with a different milter in the past, so I'm sure it's 
nothing to do with the milter.

Also, I figured out why the milter was crashing on reloading the 
greylist.conf.  The timing was such that the milter was dumping the 
memory at the same time it noticed that I made changes to 
greylist.conf.  In that case, the milter crashes.

Ken

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