Re: mail and IPv6, not The Reg does 240/4

[Matthew McGehrin <drinking () coffee reverse net>]

Tom,

The solution is easy, just have a dual-stack MX record.

$ host gmail-smtp-in.l.google.com.
gmail-smtp-in.l.google.com has address 172.253.115.26
gmail-smtp-in.l.google.com has IPv6 address 2607:f8b0:4004:c06::1a

Servers using IPv6 connect to IPv6 as needed.

Matthew

On 2/14/2024 9:26 PM, John Levine wrote:
> It appears that Stephen Satchell<list () satchell net>  said:
> > On 2/14/24 4:23 PM, Tom Samplonius wrote:
> > > The best option is what is happening right now:  you can’t get new IPv4
> > > addresses, so you have to either buy them, or use IPv6.  The free market
> > >    is solving the problem right now.  Another solution isn’t needed.
> > Really?  How many mail servers are up on IPv6?  How many legacy mail
> > clients can handle IPv6?  How many MTA software packages can handle IPv6
> > tod