thunderbird-android VS Aegis

K-9 Mail joined Thunderbird to become Thunderbird Mobile [0]. They regularly publish progress updates [1] and their GitHub repository is regularly publishing releases and merging fixes and features [2].

0: https://blog.thunderbird.net/2022/06/revealed-thunderbird-on...

1: https://blog.thunderbird.net/category/thunderbird-mobile/

2: https://github.com/thundernest/k-9/pulse

K-9 Mail (version 6.601): Full-featured email client

Email: You can use either FairEmail (F-Droid | GitHub or K-9 Mail (F-Droid | GitHub ). In both clients you can add a gmail account through IMAP. The advantage is that you won't need any Google Services installed but you will still be able to access your gmail account.

K-9 will become mobile Thunderbird in the near future. But it's already plenty usable as it is, and it does not load external resources by default.

* [K-9 Mail](https://k9mail.app/) is becoming Thunderbird for Android

If you're seeing it on your phone, maybe it's related to K-9 Mail?

K-9 mail does that, works great with gmail: https://k9mail.app/

For 1Password I use a Yubikey, but for 2FA in general, I have a backup phone running Aegis[1].

[1] https://getaegis.app/

Bottom line is, why in the world would you use a mysterious closed source app when there are better options out there? 2FAS is one of the better ones. Aegis Authenticator is another good choice for Android devices.

You can enable 2fa with amazon I suggest you do that with a 2fa app like aegis, that will greatly increase the security of your account and require the 2fa code to login to your account.

Aegis Authenticator has been a lifesaver for me: https://getaegis.app/

I use Aegis[1] on mobile and OTPClient[2] on my computer, both are regularly backed up on change.

I do not use the TOTP feature in my password manager (though I can split it to new DB in keepassXC) as feel it will defeat the purpose of 2FA.

[1] https://github.com/beemdevelopment/Aegis

Google Authentificator → Aegis