[ipv6-wg] Disband IPv6 WG

* Jens Link (lists at quux.de) [191004 11:26]:
> Enno Rey <erey at ernw.de> writes:
> > now back to my day job, full of #IPv6
> 
> So you are done with your work and Bjoern can get mail from $mailserver
> run by your new employer?

Nope. At least all their MXes are still legacy. But 
these changes need time. I haven't given up hope yet. 

On the bright side:
One of the german universities has added IPv6 to their 
MXes a few weeks before. And since yesterday it really 
started working.

Now listen and repeat:

If you deploy IPv6 on your Mailservers: PLEASE check 
your setup from an IPv6-only site! If your Spamfilter 
depends on Legacy IP, it WILL break. If your DNS depends
on Legacy IP, it WILL BREAK. If your outgoing MX 
depends on Legacy IP, it WILL break. 

Bjørn

P.S: I know. This looks like preaching to the converted. 
But the sad truth is: To my current experience, even IPv6
professionals seem to fail on these simple checks. I will
never understand, why. If you run Dualstack, also do a 
FULL check on both protocolls and don't rely on IPv4.