... do it yourself.
A vanity domain name, a VPS hosting an ubuntu instance running postfix, dovecot, spamassassin, roundcube, denyhosts and duplicity backup to some rsync.net space.
Yes it costs money, but I control the whitelists, the filtering, the retention and the backups. It's a small price to pay. I wouldn't expect my grandmother to set up something similar, but I can host extra mailboxes if need be. It's not that hard to do if you've been running linux for a couple of years. Set it up and forward a copy of your email from your current provider for a few months until you feel comfortable with your set up.
Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
for example do you know the history of Erlang?
No, but I've seen the movie.
[...] mostly oceanographers, [...]
The atmosphere-ocean system is a coupled one on climate timescales. Oceanographers are very much climate scientists.
Kiss your keyboard goodbye!