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by msk-lywenn 778 days ago
This was maybe three four years ago. That might be it. I lack rDNS but I have everything else. Except for MTA-STS, I’ll check that out
1 comments
tambre 777 days ago
Yeah, rDNS is a hard requirement for IPv6. I believe you should get a hard reject for missing that with a pointer to the documentation.
link