Choose your Email Encryption App

Add-in for Microsoft Outlook


Seamless integration with the most popular business email client on the market. Our add-in for Microsoft Outlook works in conjunction with your existing email.

Compatible with Windows versions of Microsoft Outlook 2007, 2010, 2013, and 2016. For Outlook 2003, please download this older version

Mobile Device Support

Protected Trust Mobile Apps

Take your secure emails on the go with our Touch ID-enabled mobile app.

Fingerprint-secured login to your encrypted emails has never been easier!


Secure Virtual Printer


Save time and send secure emails directly from your existing EHR, or any Windows application, by printing to the Secure Virtual Printer.

  1. Click “Print”
  2. Select the “Send as Protected Trust Message” printer
  3. Protected Trust converts the file to a PDF and sends it as an attachment through Protected Trust’s secure email

API and Encrypted SMTP Gateway

Automated Secure Email with our SMTP Gateway

The Protected Trust SMTP Gateway allows organizations to send out automated email securely. An organization connects to the SMTP Gateway using TLS encryption and logs in with access credentials. Once the account is authenticated, Protected Trust scans the email to locate the Protected Trust XML string. The XML is then parsed and if no errors are found, the email is relayed through Protected Trust to the recipient, using the specified authentication method.