I would say one of these providers: * https://www.privacytools.io/providers/email/ https://www.privacytools.io/providers/email/ * https://web.archive.org/web/

I would say one of these providers: * https://www.privacytools.io/providers/email/ https://www.privacytools.io/providers/email/ * https://web.archive.org/web/20190619003906/https://www.privacytools.io/providers/email/ https://web.archive.org/web/20190619003906/https://www.priva... Ultimately free without encouragement to pay is not good as it will involve the platform monetizing by selling your data in some way. Should also note at the moment, not all providers are equal, for example posteo.de doesn't allow you to use your own domain whereas some of the others do. Protonmail doesn't currently have calendars although that's coming soon https://www.reddit.com/r/ProtonMail/wiki/dev-status https://www.reddit.com/r/ProtonMail/wiki/dev-status Tutanota does not allow for IMAP/SMTP (you must use a browser or their client). There's also this issue where privacytools.io plan to expand the information about each provider. https://github.com/privacytoolsIO/privacytools.io/issues/603#issuecomment-456400331 https://github.com/privacytoolsIO/privacytools.io/issues/603...