Why? I have been using mailbox.org for a few years and I am very happy with it.
Not OP, but the Proton UX / UI is far superior to Mailbox.org - which i personally find hard to navigate and disorganized...
alt Hacker News
Not OP, but the Proton UX / UI is far superior to Mailbox.org - which i personally find hard to navigate and disorganized...