Proton
Empowering you to choose a better internet where privacy is the default. Protect yourself online with Proton Mail, Proton VPN, Proton Calendar, Proton Drive. Proton Pass and SimpleLogin.
Proton Mail is the world's largest secure email provider. Swiss, end-to-end encrypted, private, and free.
Proton VPN is the world’s only open-source, publicly audited, unlimited and free VPN. Swiss-based, no-ads, and no-logs.
Proton Calendar is the world's first end-to-end encrypted calendar that allows you to keep your life private.
Proton Drive is a free end-to-end encrypted cloud storage that allows you to securely backup and share your files. It's open source, publicly audited, and Swiss-based.
Proton Pass Proton Pass is a free and open-source password manager which brings a higher level of security with rigorous end-to-end encryption of all data (including usernames, URLs, notes, and more) and email alias support.
SimpleLogin lets you send and receive emails anonymously via easily-generated unique email aliases.
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Just saw this on F-Droid: You Have Mail: Email Notification without Google Play Services; has anyone tried it yet?
Yes I have been using this for a year now and it works great. You can customise the poll duration (how long it waits before checking for new emails) and the notifications have quick actions like mark as read and trash.
Signing in to Proton Mail with my username and password on this app made me a little nervous, are there any privacy concerns about doing this?
In a way, yes. The more things that have your credentials the greater the attack surface. However the code is open source, you could inspect it and build it from source if you'd like to. Additionally if you use a mailbox password then the app won't be able to read email content as the mailbox password is used to decrypt the actual content while the main password is for accessing the account. The app doesn't need your mailbox password for its functionality so it can't decrypt email content (except the header which is not encrypted by PGP).
Thanks! 🙂👍