A disposable or a fake email looks like a real email address. Unfortunately, it is a throwaway address that is used once or twice and never again. So there will be no one reading all the marketing emails you send to that address.
As a serious business, you need to make sure that none of your users have are using a disposable email address to make sure you can reach them. Because there’s no one at the other end, you don’t get any engagement with such addresses.
This API is a quick, lightning speed way of detecting if an email address is disposable/throwaway or not. It is updated on a daily basis and features the most up to date database that is available. So instead of building your own service and trying to be up-to-date, just give a try to ours. It is free to try,