Darren Pilgrim:
But now I have a second such doamin, and I'd like to head-off a
maintenance problem. All such domains use the same set of MXes, so
it's an obvious pattern to switch transports if the next hop is one
of the offending MXes.
if ipv4 is still working you could
- modify your local dns resolver to strip the AAAA part in it's answer
for the hosts in question
- modify your local firewall to *reject* outbound connections to the
IPv6 address in question
both are not perfect any may have unwanted side effects.
Andreas
