How does one rotate DKIM keys as everyone should be doing every 6 months or so? Other vendors have web sites that let you have multiple DKIM key pairs and you choose the one that is active (also let you enter your selector). I do not see any option to have more than one, nor do I see an option to replace the existing one with a new one as per our encryption policy requires. Am I missing this somewhere?
It looks like you're looking for information about self authentication with Constant Contact. I would recommend reaching out to our Account Review team as they can help you with updating your DKIM key and answer any questions you have about self authentication. You can reach them at: 866-433-8499
Tier II API Support Engineer