Kolab Now is another open-source email service
with its servers completely hosted and managed in Switzerland, just like ProtonMail, so your private data is never crawled.
0
7
But between the ability to use Thunderbird or similar email clients for fully-encrypted messages and the storage of your content in a country as secure about data as Switzerland,
the sacrifice in security for the features Kolab offers might be one of the best
tradeoffs in email today.