I highly suggest Tuta, https://tuta.com/, or other conventional mail boxes like https://mailbox.org/en/

The only thing I don’t like about Session is, it runs on a underlying crypto token, incentivizing the network to keep on going. https://getsession.org/blog/migrating-from-the-oxen-network-to-session-network imo

Mega brain move right here. Combined with a multitude of open source web mail clients and ur golden. SOGo and roundcube my beloved.