Inky
Using your existing email accounts, Inky lets you exchange encrypted and digitally signed emails with anyone — your recipients don't need to install anything or remember a special password. Encryption provides confidentiality, and signing provides sender verification to help prevent phishing attacks. Inky combines the first-class email and calendar features you'd expect from a modern email client — elegant design, speedy search, and syncing between all your devices — with military-grade security and enterprise data protection. IT professionals can deploy Inky with custom policies to protect email data when an employee loses a device or leaves the company. After a free trial, Inky requires a monthly subscription and supports Microsoft Exchange, Office 365, Google Apps / G Suite, and other IMAP accounts.
