On Wed, Jun 10, 2020 at 12:29:04AM +1200, Nathan Ward wrote:
> > put "reject_non_fqdn_recipient" into your smtpd_recipient_restrictions
> > - if you want to deny everyone from doing that, put it before common
> > permit_mynetworks
> > and permit_sasl_authenticated
>
> Hi - thanks for your reply. I have explored that option, as noted
> later in my message - but I’d like to be able to accept email for
> user@gtld - where there is no dot in the domain, but there is still a
> domain. I’ve not seen that today, but, I would be surprised if people
> don’t start doing it at some point. Looks like there’s a handful of
> ccTLDs with MX records, for example.
That's an admirably principled position, but entirely without practical
merit. Mail to user@tld is not happening any time soon, and jumping
through hoops to avoid breaking this is not worth anyone else spending
time to help you find work-arounds, even if you're willing to spend some
of your own time in pursuit of such lofty goals... :-(
Good luck. My advice is to take the pragmatic path and break user@tld,
just like everyone else does.
--
Viktor.
