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A comment on Please do not put IP addresses into DNS MX records. Parent comment

Re:Please do not put IP addresses into DNS MX records by mlyle on Sunday February 21, 2021 @02:05PM (#26216137)
Sure, but it has A records too.
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Re:Please do not put IP addresses into DNS MX records by stonesweep on Monday February 22, 2021 @09:21AM (#26224830)
I wake up and see the HackerNews downvote train has hit myself and you, when what you said is 100% correct; gmail-smtp-in.l.google.com is both IPv4 and IPv6.

The network I'm on right now (VPN to work) cannot service IPv6 and I cannot connect to the IPv6 IP for that MX host, but I can easily connect to the IPv4 endpoint.

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