> On 2023-02-27 08:43, Matus UHLAR - fantomas wrote:
On 27.02.23 08:07, Fourhundred Thecat wrote:The problem is, postfix does not seem to distinguish between IP having no DNS record, and my DNS server being temporarily unavailable.why do you think that? the error above is a "4xx" which means temporary error - the client is expected to retry.
are you sure about that? I am only seeing "450 4.7.25" regardless whether ip has no DNS record, or whether DNS is temporarily unavailable.
