Dnia 21.01.2021 o godz. 15:44:04 Jeff Abrahamson pisze: > > 450 4.7.1 <SERVDMZMAIL.mairie-carquefou.fr>: > > Helo command rejected: Host not found; > > > > which doesn't appear to resolve. > > OK, thanks, that's what I'd tentatively concluded, but it's a kind of > big ISP (OVH), so I have to at least ask myself if I've misunderstood > before being too convinced that they've misconfigured their DNS.
I don't see a DNS misconfiguration here. I see a misconfiguration of the sending MTA, that completely unnecessary advertises itself with the internal name that isn't configured in the DNS. It could just do "HELO mairie-carquefou.fr". -- Regards, Jaroslaw Rafa r...@rafa.eu.org -- "In a million years, when kids go to school, they're gonna know: once there was a Hushpuppy, and she lived with her daddy in the Bathtub."
