To my knowledge reputation is tied to the “d=“ domain. The value of the key is irrelevant with regards to reputation. Using shared or unique key pairs is a balance between managebility and security.
Maarten On Mon, 9 Oct 2017 at 19:06, Alexander Burch <abu...@activecampaign.com> wrote: > Do major ISP check the public DKIM key for reputation metrics? > > For example, an ESP might use domain1.com, domain2.com and domain3.com to > sign messages for different reputation pools. > > If these domains all have the same public DKIM key will this "blend" their > reputations in any way, namely at Gmail? Will Gmail see the 3 domains use > the same public key and link their reputations? > > Is there any advantage of using a unique public DKIM key for each domain > to keep the reputations compartmentalized? > > Thanks, > Alex > > > Alex Burch > ActiveCampaign / Deliverability Lead > (800) 357-0402 > abu...@activecampaign.com > 1 N. Dearborn St., Chicago , Il 60602, United States > <https://www.facebook.com/activecampaign> > <http://www.twitter.com/activecampaign> > <https://www.linkedin.com/company/activecampaign-inc-> > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop >
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