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Don't send to Gmail over IPv6
Yes, some people do it, and yes, for some people, it works fine. But..... If you're standing up a new server and it has an IPv6 IP address, ...
Al Iverson helping email senders navigate the ever-changing world of deliverability, since 2001.
Visit spamresource.com → RSS feedOn Hacker News Jun 2022 – Jun 2022
Yes, some people do it, and yes, for some people, it works fine. But..... If you're standing up a new server and it has an IPv6 IP address, ...