On Wed, 12 Oct 2005, Jason L Tibbitts III wrote:
>
> RC> As I understand from the spec that the callout mechanism caches
> RC> its results, I presume callouts are more efficient than database
> RC> queries.
>
> My understanding is that all lookups are cached if possible.
Yes, but only within a process, and Exim processes are very short-lived.
The callout cache is on disk and caches its results for hours.
> I think you have to do verification in an ACL
Correct.
Tony.
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