Ruleset questions

[Andrew MacLachlan]

Richard Frovarp wrote:
> How would one go about blacklisting a From email address that is did 
> not come from a subnet. Email would for this one address would only 
> come legitimately from one of my subnets. Everything else should be 
> thrown away. What would be the best way to accomplish this?
>
> Thanks,
> Richard
Use SPF???

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