On Fri, Jan 09, 2004 at 12:51:27PM -0500, tv+spf(_at_)duh(_dot_)org wrote:
| The `mx' and `a' mechanisms use A records to match the connecting host.
| There's no IPv6 equivalent that uses AAAA, because these SPF methods permit
| a CIDR length with the assumption that the host lookup is IPv4. (Such
| netmasks would be improper for an IPv6 address found via AAAA.)
|
| I recommend adding equivalent but separate mechanisms `a6' and `mx6' which
| use AAAA records rather than A. By keeping them separate, this allows `a6'
| and `mx6' to have IPv6-sized prefix lengths.
You can say
a:host.name.com/24//64
the /24 is ip4, the //64 is ip6.
Does that satisfy?
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