title: multiple key with same DKIM selector?
body: <p>I've got two separate DKIM records which use the same selector.
  One is for MailChimp which uses "k1" as selector, and the other one is an old record for which I have not found out yet what it is for. </p>
  
  <p>Is there a way to have two separate keys in the same DKIM record with the same selector? </p>