Hi ssschlam -
Welcome to the forums! With your MonsterCommerce package you have the ability to setup as many email addresses for your site as you like, so you can definitely create the email address you're looking for. You can login to manage the email addresses for your site by going to www.<your domain>.com:8383. The admin@ email address is a special one that is setup by default for you... this email address has a special access level that allows you to create other email addresses for your site.
You can find instructions on logging in to the webmail interface and making these types of changes
here.
If you need any further help, or have forgotten the password for your admin@ email account, please give our support department a call or place a ticket through your
MyMonsterCommerce account and we'll be sure to help!
Brad