The RMail encryption service has several features and options for ease of use, privacy, and regulatory compliance. This article covers these Encryption Definitions:

• Transmission - Auto-decrypts for receiver
• Message Level Encryption
• Automatically Generated Password Email
• Password Retrieval Feature
• Recipient Password Creation
• Encryption settings

Transmission – Auto-decrypts for receiver

- It is used when the recipient’s mail server has Transport Layer Security (TLS) available.
- It does not require a decryption password, link to click or special software for the recipient to open and view the message body and attachments.
- The email contains an RMail banner with the text, “Encrypted Transmission” so the recipient is aware it was not sent over the Internet in plain text.
- This feature may be set in the App settings page.
- If the recipient uses the Microsoft Outlook mail client, they may receive an Outlook “Read Receipt” request.

Recipient view of an encrypted email sent using Transmission:

Message Level Encryption

- It is used when the recipients’ mail server is unable to receive emails using Transmission (Transport Layer Security) or if the sender wishes to have the encrypted message stored encrypted at rest in the recipient’s mailbox.
- Encrypted messages sent by Message Level Encryption provide privacy by wrapping the email and attachments inside a password protected AES 256-bit encrypted PDF.
- This feature may be set in the App settings page.
- Emails require a decryption password to open and view the message body and attachments.
- Encrypted emails contain an RMail banner with text “Encrypted Email’ so the recipient is aware the email was not sent in plain text.
- If the recipient uses the Microsoft Outlook mail client, they may receive an Outlook “Read Receipt” request.

Recipient view of an encrypted email sent using Message Level Encryption:

Automatically Generated Password Email

Message Level Encrypted emails may be password protected with either a system-generated or user-generated password.

System Generated Password

- Senders using Message Level Encryption may opt to have the RMail App automatically generate a unique, eight-character, alpha-numeric decryption password.
- The automatically generated unique, eight-character, alpha-numeric decryption password is sent to the recipient inside of an automatically generated password email.

Recipient view of a system generated password inside the automatically generated password email.

User-generated password

- The sender can create a password instead of letting the system create one automatically. To do so, they need to enter the chosen password in the yellow space shown below:
- The user-generated decryption password is sent to the recipient inside an automatically generated password email. If the sender doesn’t want the email to be sent and chooses to send the password through other methods, such as email, phone or other, they simply need to uncheck the Email password option.

Password Retrieval Feature

Senders may allow the option for the recipient to retrieve the decryption password on their own by clicking on a password retrieval link inside the body of the Message Level Encrypted email.

Recipient view of the password retrieval link inside the Message Level Encrypted email. 

Recipient Password Creation

Senders may allow the option for the recipient to create their own permanent, personal decryption password by clicking on a password setting link inside the body of the Message Level Encrypted email.

Read this article to learn more about creating your own decryption password.

Encryption Settings

Transmission – Auto-decrypts for receiver

- Available if the recipient’s mail system accepts Transport Layer Security.
- It does not require a decryption password.

Message Level - decrypts with password

- The decryption password is sent by an automatically generated password email if the feature “Email password” is checked.
- If the “Email password” box is not checked, the sender must provide the password to the recipient.

Read this article to learn how to encrypt a message using RMail,