On 25/06/2023 03:39, Jasen Betts via Exim-users wrote:
> MAIN_LOCAL_DOMAINS is used to set this domainlist (and not used anywhere else)
>
> domainlist local_domains = MAIN_LOCAL_DOMAINS
Further, you could express the lookup as
pgsql;select 1 from domains where domain_name = $domain
This assumes that only the presence of the domain in the table is
what matters, and that the local_domains list is only used for
doing that sort of test (which is pretty much all you can do with
a domainlist).
The advantage is that all the filtering of the table is done by
the DB, so comms costs are minimized; likely not an issue for
the OP's size of operation but could be a factor for a larger one.
--
Cheers,
Jeremy
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