On May 30, Marco d'Itri <[email protected]> wrote: > I have noticed in the last few days that mail sent to gmail from a > significant number of our servers (both shared hosting / mail relays and > dedicated servers of our customers) with IPv6 connectivity is delivered > to the spam folder. Anecdotical data that I gathered suggests that: - I am not alone - IPv6 senders are not penalized by default but they can easily be, much more easily than IPv4 senders - as usual, there is no way to request a reputation revision[1] - as usual, IP reputations problems can be worked around by implementing SPF (?) or DKIM
While I sympathize with the movement that wishes to move reputation from IPs to domains, I expect that the result of this policy will almost always be that IPv6-enabled customers will request to disable IPv6 for mail. [1] something that even Yahoo manages to do, but that I suspect that Google is unwilling to do since it cannot be performed automatically with a MapReduce... -- ciao, Marco
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