It's a proprietary binary, and I need to email you for the Linux version (although I'm sure the latter will change once it's more stable). My understanding is

It's a proprietary binary, and I need to email you for the Linux version (although I'm sure the latter will change once it's more stable). My understanding is also that it's not intended to be exposed on the internet, which leaves my Blackberry a bit out of luck. Not to diminish your work, but the ProtonMail Bridge solution doesn't really meet my needs in the same way native POP3 support would.