[exim] Incoming emails spoof check

I checked the samples for "spoof" but could not find a
match (also the online doc). Do you know of any
examples to check incoming emails for spoofing by
matching domain part against a series of IP addresses?
Such as xxx.org must be in the range 200.134.80.*?
Preferably in the ACL checking area.

Thanks,

Guru



        
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