Kolab - https://kolabnow.com/ https://kolabnow.com/ (just go for the webmail-only lite version) Posteo - https://posteo.de/en https://posteo.de/en Both paid b

Kolab - https://kolabnow.com/ https://kolabnow.com/ (just go for the webmail-only lite version) Posteo - https://posteo.de/en https://posteo.de/en Both paid but they are very cheap and don't advertise to you. Kolab is run by the founder of the European Free Software Foundation, with all that connotates. Posteo is a German provider, aiming to be totally green and offering at-rest and in-transit PGP encryption and a host of other security and privacy features.