IPv6-working freemail status
Geert Hendrickx
ghen at telenet.be
Fri Jan 15 12:42:19 CET 2010
On Thu, Jan 14, 2010 at 09:59:52PM +0100, 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).
I've seen content filters mis-interpreting those very headers and marking
mails as spam because of that (but it was easily fixed).
Geert
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