[ietf-dkim] "Best Before" vs. "expiration" date

[Jon Callas]

On 24 Apr 2006, at 5:09 PM, Paul Hoffman wrote:

>> Validating messages
>> a priori does not do that.
>
> True, but does it hurt to do so? If a recipient validates a message  
> that has "expired", what is the harm to the recipient? The  
> advatage, of course, is that they are now sure where the message  
> came from; this is the same as in the normal, unexpired case.

There's nothing wrong with it, I don't think. It's just that they way  
the present text reads to me, if I am to follow the signer's wishes,  
it is to reject a priori. If we want different, we should just say so.

	Jon