[exim] Best way of doing a two feild look up

Hi,


Can someone advise what the best way of lookup up pairs of addresses in an exim table are.


I want to do something like:


userabc@???:usercds@???: :fail: SMTP errror or alias to diver to.


i.e. mail from userabc@??? addressed to usercde@??? is either re-aluiased or subject to a :fail: etc.


I cannot see an obvious way and though parhaps a combined key with a comma sepperator would do, i.e. look up

userabc@???,usercde@???: :fail: bla bla bla


but am not 100% sure if comma is a valid token in Addresses and thought I would aks what others have done.


Kittos


Rob


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