The interface is very intuitive to use with all of my favorite features being right at hand when I need them! My team has been able to manage their own emails in house without using any outside vendors or services. We have also used it as our internal email system but haven't had issues there either. It's easy enough that anyone can use it! If you are looking for something simple/easy to get started then this program will suit your needs perfectly. It's not too complicated so if you're new to email management, this is perfect because it doesn't require much training time. You don't even have to be tech savvy to learn how to do everything here!