Hushmail

Hushmail is a secure email provider that has sculpted plans for a number of specific verticals, including healthcare, law, small business, nonprofits, and personal use. Healthcare providers, for example, should appreciate that Hushmail is HIPAA-compliant and comes with built-in email archiving. The service uses OpenPGP to encrypt email and is located in Canada, protected by Canadian privacy laws. One nice addition: Hushmail offers signable, encrypted web forms along with its email services. Unfortunately, Hushmail no longer offers a free tier of service. Professional plans start at $5.99 per month and the personal version starts at $49.98 per year. You can use Hushmail on the web as an iOS app. An Android app is forthcoming.