IPv6-working freemail status

[Sam Wilson]

On 14 Jan 2010, at 20:59, Marco d'Itri wrote:

> On Jan 14, SM <sm at resistor.net> wrote:
>
>> Some mail filters unfortunately consider MX hosts resolving to IPv6
>> addresses as invalid and the message is rejected because of that.   
>> You
>> won't encounter that problem with the freemail providers you  
>> mentioned.
> I doubt that this will be a problem since nowadays some versions of
> Microsoft Exchange add Received headers with link-local v6  
> addresses to
> all outgoing messages (even if the server does not have v6
> connectivity).

And if you manage to remove IPv6 completely (with registry edits),  
not just disable it, then Exchange starts putting in 169.254  
addresses.  But that's probably off-topic.

Sam

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