Comment by bartkappenburg
10 years ago
"I do have FastMail’s Android app on my telephone. The app is a Cordova / PhoneGap / CrossWalk style unit with real-time email push and notification via Google Cloud Messaging (this is a relatively energy-efficient way for android phones to get push notification and is natively supported by FastMail)."
Migrating away from GMail for privacy reasons and he still ends up with Google for functionality...
Do you know what data is transmitted via GCM? It could be a simple "hey check your email" ping to trigger a sync. I doubt the message size allows for much more anyway. It might also be encrypted, whatever it contains.
It's just an edge trigger - pretty much a modseq counter on the entire user (though we have plans to split it up into categories a little more so you know if it's just a calendar change or just an email arrival)
You would still have some meta-data :-)
Well yeah but if all Google knows is when you're getting push notifications about email, then that's a lot better then them having all your email. I mean, there's a good chance that the person who just emailed you is using Gmail so they still have a lot of your email even if you don't use it at all. It's all a trade-off.
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The problem with GCM is that there's no real replacement for it. It's just too absurdly efficient.