On Sun, Nov 14, 2021 at 01:29:51PM +1100, raf <post...@raf.org> wrote:

> On Fri, Nov 12, 2021 at 03:47:22PM -0600, Tyler Montney 
> <montneyty...@gmail.com> wrote:
> 
> > Thanks for taking the time to review this. I feel confident now in putting
> > it online (after I make a few of your adjustments).

One last thing, there can also be mistakes in the files
referenced by parameters in main.cf. e.g., regexp/pcre
files can have mistakes in their regular expressions,
or other lookup tables might have the wrong kind of key
on the left hand side. For example, some parameters
require a key as described by the access(5) manpage
(e.g. user@domain domain.tld .domain.tld user@
net.work.addr.ess ...) but we've seen attempts to use a
shell-style glob pattern instead. An error like this
will mostly result in silent failed lookups.

So it's important to check the documentation carefully
for those things (which I think you will have done),
and also test the lookups that you are expecting to
encounter with postmap -q. That will give you
confidence that any lookup databases will do what you
are expecting.

cheers,
raf

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