Why I moved away from Gmail - Best Alternatives

Did you know that Google scans all your mails for Spam? Well, that is okay but it goes further more. It scans your mails to build your advertising profile. Yes, all your mails is being scanned by bots and they build your advertising profile out of that. Now, this is a serious issue. Why will we want someone to read our mails? Whether it is a bot or a human.