[toaster] Update for Greylisting

[Rick Macdougall]

Here's some code that should go somewhere.  I call it deletegreylist.sql 
on my system and run it every hour.

delete FROM  `relaytofrom` WHERE origin_type = "AUTO" and ( 
unix_timestamp(  )- unix_timestamp( record_expires )  >0 )

If you don't do that, of course, your database fills up with expired 
entries.


Regards,

Rick