I initially bought this to hide my email address and keep my personal addresses safe, but since you can add your own domains, it can easily replace an expensive M365 or Google Workspace subscription. I've added three custom domains already and have started sending and receiving emails from them. The support team is also very quick and very helpful. You absolutely won't regret just buying it, even if you don't have an immediate need for it. I love it and I won't ever look back.