Earlier quoted context omitted.
I started using tuta until I realised they don't support IMAP. Something to do with not guaranteeing encryption (which isn't even enabled by default) but has the convenient effect of locking you into their apps
IMAP can do TLS though (IMAPS). Did they say what's stopping them from using that (and requiring the encryption!)?
Re: Fastmail offers EU data region
#301Its probably about end to end encryption. Protonmail doesn't store mailboxes in plaintext, only the client actually decrypts the mailbox. IMAPS only encrypts the conn between mail server and client.