[exim] Blocking Users with No Reverse DNS

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Lähettäjä: Matt
Päiväys:  
Vastaanottaja: exim-users
Aihe: [exim] Blocking Users with No Reverse DNS
How many block connections with no reverse DNS? How much collateral
damage is there with doing that? How do you set it up in Exim?

Also, I heard some block IP addresses that look dynamic such as
127.0.0.1.myisp.com. How is that done?

Matt