I also sent this message to the shared message board. I work for a statewide trade association. We share a Constant Contact Account with some other states so we can have a common message, but delivered from a familiar email address in each state. We want to do DKIM for our emails from this account and want to make sure it will not adversely affect the other states we share with. Does anyone have experience with this or an answer on whether it would be a problem for others? ... View more