@MissGayle no, the servers don't even allow to send emails unencrypted, so all the emails must be e2e encrypted, there is no data mining, in fact the #ArcaneChat and #DeltaChat apps focus on removing all possible metadata from email even if you use them with ex. #gmail, you don't even need to use https://arcanechat.me server, you can even setup your own, unlike #protonmail and #tutanota, this is not a silo that requires to use their specific app with their specific central server