ProtonMail expands encrypted email service to desktop clients including Outlook, Thunderbird, and Apple Mail

Encrypted email service ProtonMail has come a long way since its global launch 18 months ago, having expanding into VPNs, started targeting small businesses, grown into multiple languages, and — most recently — launched an encrypted contacts manager.
Now, the Swiss company is making its core service available in desktop email clients that support IMAP and SMTP, including Microsoft Outlook, Mozilla Thunderbird, and Apple Mail.
Founded out of CERN in