Hello,

    Your first step would be to find who is hosting your SmarterMail. It sounds like you are a domain user. In order to change the Domain admin to yourself, you will need to find out who is managing your domain. If this doesn't ring any bells you can attempt to find it by using your MX Records. I can assist you with this if you can DM me (click on my name and send me a message) your domain name, using this we can lookup the server that is hosting your SmarterMail Domain and from there we may be able to look at our licensing system or public records for contact info.