Try Tuta mail here

I recommend Tuta if you’re a privacy purist who cares about metadata exposure and anonymous onboarding. Their custom encryption approach lets them encrypt subject lines between Tuta users, and they’ve pushed into post-quantum territory with TutaCrypt for future-proofing.

Pros

+Encrypts subject lines by default between Tuta users
+Custom encryption stack with TutaCrypt (hybrid post-quantum)
+Anonymous signup with no phone number or backup email
+Android app available via F-Droid (no Google services required)

Cons

-Interface is more minimal and less “premium” than Proton
-New accounts may have a 48-hour sending hold
-No direct cryptocurrency payments (gift cards via partners instead)

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Proton Mail vs Tuta: Which Email is More Secure?

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Try Tuta mail here

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Highlights

+Encrypts subject lines by default between Tuta users
+Custom encryption stack with TutaCrypt (hybrid post-quantum)
+Anonymous signup with no phone number or backup email

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