If your domain is registered with any other registrar, you may follow these steps(or forward them to your webmaster/techie friend)
Log in to your account on the domain registrar's site. Navigate to the DNS / Domain Management Page/ DNS Control Panel in your admin page Find the MX Records/ Email Servers/ Email Settings option Add OR Replace the following MX records to your domain Set the Name/ Host field as either @ or leave it Blank. Set the Value/Points to field as mx1.flockmail.com Set the Priority field as 10 Set the TTL value to 1 hour or 3600 seconds.