Proton Mail

SHA256 cert fingerprint available on website: https://proton.me/support/mail-android-beta

Changelog (Nov 1, 2023):

• Your Proton Mail signature is added when sending messages.
• You can archive, trash and reply to messages from notifications.
  Attachments can be deleted from drafts.
• You will receive push notifications when someone signs-in to your account on other devices.
• Notifications are cleared when a message is read on another device.
• An error message is displayed when sending a message fails.
• An error message is displayed when the attachment size exceeds 25MB.