Catalin Bucur:
> On 10/03/2020 17:16, Wietse Venema wrote:
> > This is a problem with your DNS resolver WHICH IS NOT PART OF
> > POSTFIX. You need to use a better DNS resolver.
> >
> > With a properly functioning resolver:
> >
> > $ host -t mxwww.postfix.org
> > www.postfix.org has no MX record
> >
> > Wietse
>
> You didn't understood my issue, you didn't read enough from my message
> or I didn't was clear enough.
> It's not a MY dns issue, in fact it's not a really dns issue. Again:
You wrote:
> For an existing domain but without MX, I receive the error /"Host or
> domain name not found. Name service error for name=onedomain.com
> type=MX: Host not found, try again)"/, but AFTER
> /maximal_queue_lifetime/, which is very annoying. In this case the
THAT is a DNS resolver issue. If a domain has no MX record the
resolver should say sa IMMEDIATELY, instead of forever returning
NO RESPONSE.
Again, with proper resolver will IMMEDIATELY reply that the MX
record does not exist, allowing Postfix to proceed IMMEDIATELY.
With your broken resolver, Postfix gets NO RESPONSE, and therefore
it MUST NOT proceed.
Wietse
