On Tue, Oct 10, 2017 at 9:03 AM, Philip Paeps <phi...@trouble.is> wrote:
> > Are there any published recommendations on how frequently one should > rotate DKIM keys? > Yes: https://www.m3aawg.org/documents/en/m3aawg-dkim-key-rotation-best-common-practices There's an update coming soon but the frequency recommendations don't change. > I've been rotating mine annually. I use my DNSSEC KSK rollover reminders > to remind me to roll my DKIM keys too (and I've just noticed I have been > forgetting to roll some of them for a while). > > I would not be surprised if rolling keys at all puts us firmly in a > statistically insignificant minority. :) M3AAWG is also working on an email authentication practices survey that will be coming out soon too. --Kurt Andersen
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