Author: Michael Haardt Date: To: exim-users Subject: Re: [Exim] exim's databases and sql
> I presume you mean not to use an smtp-wait hints db. I suspect not that > using a normal retry hints db would not be such a good idea.
It may be a good idea for hosts that do mostly local delivery and
hand any remote deliveries to a smarthost, because it avoids locking.
I don't know how much locking and lookups cost on a retry db on tmpfs,
though.