Google sent out a notification that it will automatically opt you into using content from your email campaigns to help Google know what to show in Google Search, Shopping, and Maps. It will look for content around “new arrivals, sales or ongoing promotions, social media profiles, and others,” Google said.
Mailbox.org is another good option, pretty cheap to use with your own domain which I highly recommend. With your own domain you can move email providers almost instantly later on without needing to update emails on all your accounts.