MacOS – Label view on Apple Mail for OSX

Before you completely ditch GMail and go just with your iCloud account, you'll need to ask yourself this question:

Will you only access your mail solely from Apple devices?

I for one created an iCloud e-mail account on my Mac just to be disappointed that I couldn't configure my Android phone to access it. Probably Apple is not using standard IMAP for its iCloud e-mail service.

That said, you could upgrade your GMail account to a premium account to get better quality of service (and perhaps not having them selling off your e-mails).

I'm going to suggest that you use this tutorial to make GMail and Mail.app work together. The key for me was disabling the "All Mail" label, which was causing havoc in my mail setup.

LINK