I can't trust Nylas because you have to trust yet another third party with your email, in addition to Google/Fastmail/etc. AFAIK Nylas doesn't work locally, bu

I can't trust Nylas because you have to trust yet another third party with your email, in addition to Google/Fastmail/etc. AFAIK Nylas doesn't work locally, but through their "cloud APIs". They are not alone in doing this, for example Outlook for Android does it too. That's not acceptable for me. The email client should only communicate with the email provider. Trusting Google or Fastmail with my email is a leap of faith on its own without an extra third party involved. I'd also question their business model. If Nylas Mail syncs via their own "cloud", it means it's not free to operate on an ongoing basis, which means it will end up either milking users for ads or die.