Let's Encrypt announced its IPv6 support today... What about MiaB to default It?

See: https://letsencrypt.org/2016/07/26/full-ipv6-support.html

  • The question is: Can we build a MiAB server to be online just under an IPv6 IP address (without an IPv4 one enabled)?

It should be possible.

It may not be a good idea, however:

  • Not everyone that you want to email with (incoming & outgoing) will support IPv6.
  • Brute force login attacks are easier over IPv6 because the address space is effectively unbounded.

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