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Email Encryption

Overview of Service

Emails containing sensitive information are automatically encrypted when sent to an email address on a server with lower security. Email encryption requires the recipient to use a one-time passcode, generated by Microsoft Office 365, to decrypt the message and access any included attachments.

Description & Features

  • Credit card information, social security numbers, and Drexel University IDs automatically detected
  • Detection threshold for flaggable data to prevent false positives
  • Sensitive information automatically encrypted
  • Passcode-accessible for recipients

Getting Started

Detection and encryption of sensitive information occurs automatically. For more information on sending and receiving encrypted emails, see the Email Encryption and Data Loss Prevention page.

 You can also manually encrypt an email by typing [encrypt] at the beginning of the email subject.

Recipients of encrypted messages will need to:

  1. Save the "message.html" file to their computers by right-clicking the file attached to the message and selecting "Save target as."
  2. Open the file you saved and select "one-time passcode" to generate an email from Microsoft with your passcode.
  3. Enter this passcode into the field. Your encrypted message, with any attachments, will then load in the window.

Requesting Help

Contact the IT Help Desk at or call 215.895.2020.

Additional Information

The definition of what kind of information is "sensitive" will evolve as required by law, university policy, and common sense.