Consider my comment at techsupportalert.com:
vivaldi.net webmail is one to consider.
the webmail (not pc client program) in myopera was pretty good. It was part of the whole myopera community. It went “out of business” as of 3/1/2014. Ie tomorrow 😉 However the developers created Vivaldi.net; It is also a whole community. When i load their pages and watch the websites go buy in the lower left of firefox, i do not see many other sites go by besides vivaldi.net. In fact i just double checked now, and the ONLY website i saw go by was vivalid.net. Their servers are located in Iceland for, among other things, their commitment to free speech. It appears on first glance very open source mindset friendly.
Their vivaldi mail is a hosted roundcube program. I have found roundcube only meh. But free as in freedom is a big plus. Altho this is just a first impression, i dont really “know” the community.
The tech world is changing. There use to be “free as in beer” and “free as in freedom”. Now there’s also “free as in build a profile on you and sell it for ad targeting”.
Some other notes:
vivaldi does not (currently) require a cell phone to register. They require an alternate email which they use for “forgot password” retrieval. gmail and yahoo both require a cell phone these days.
gmx.com is another “very free” email. It is very Ad HEAVY. From a couple hours surfing, it has mixed reviews. Gmx has the advantage that it does not (currently) require a cell phone nor even an alternate email address to register. Their “forgot password” retrieval is based on a security question.