Encrypt an email by typing [encrypt] or [secure] in brackets anywhere in the subject line of the email. These commands are not case sensitive, but must include spaces on both sides of the brackets for [secure] or [encrypt] to work properly.

• Examples: will encrypt:
  
  • Subject: [Secure] Game day plans
  • Subject: [secure] Game day plans
  • Subject: Game day plans [SECURE]
  • Subject: [Encrypt] Game day plans
  • Subject: Game day [encrypt] plans
    
    
• Examples: will not encrypt:
  
  • Subject: [Secure]Game day plans (No space after bracket)
  • Subject:[Secure] Game day plans (No space before bracket)
  • Subject: encrypt Game day plans (No brackets) 

When the email system receives the command, it will automatically encrypt the message. 

In an email message, click on the Encrypt button and pick the encryption that has the restrictions you want to enforce, such as Encrypt-Only, Do Not Forward, University of Arizona – Confidential, or University of Arizona – Confidential View Only.

• Encrypt-Only – This message is encrypted. Recipients can't remove the encryption.
  
  
• Do Not Forward – Recipients can read this message, but cannot forward, print, or copy content. The conversation owner has full permission to their message and all replies.
  
  
• University of Arizona – Confidential – This content is proprietary information intended for internal users only. This content can be modified but cannot be copied and printed.
  
  
• University of Arizona – Confidential View Only - This content is proprietary information intended for internal users only. This content cannot be modified.

For Outlook 2019 and 2016:

• In an email message, select File > Encrypt this item
• Pick an encryption option that has restrictions you'd like to enforce, such as:
  
  • Encrypt-Only
  • Do Not Forward
  • University of Arizona - Confidential
  • University of Arizona - Confidential View Only

Encrypt a single outgoing message:

• In the message that you are composing, click File > Properties.
• Click Security Settings
• Select the Encrypt message contents and attachments check box.
• Click OK.
• Compose your message, and then click Send.
  
  

Encrypt all outgoing messages:

If you choose to encrypt all outgoing messages by default, you can write and send messages the same as with any other message, but all potential recipients must have your digital ID to decode or view your messages.

• On the File tab. choose Options >Trust Center > Trust Center Settings.
• On the Email Security tab, under Encrypted email, select the Encrypt contents and attachments for outgoing messages check box.
• Click Ok.
• To change additional settings, such as choosing a specific certificate to use, click Settings

If someone in Outlook (or someone using any Microsoft Office 365 email service) sends you an encrypted email, you will not see the message in the email. Instead, you will receive a message like the following:

Save the html attachment to your computer, and open it with a web browser. You will see a window like the following:

   

Any recipient with a Microsoft Office 365 account can choose the Sign in option. 

• It can take a while for this to load.

Outlook users should Log in to Microsoft 365 as usual. 

• Choose the Work or school account option, if you are given a choice and the sender sent to your Outlook account. 

Once you are logged in, you will see the content of the encrypted message. 

When someone with a non-Microsoft email service (such as Gmail or Yahoo!) receives an encrypted email from a Microsoft Office 365 email service, they may also receive a warning message about the attachment.

1. 1. If they are expecting an encrypted email from the sender, they can ignore the warning message and save the message.html attachment to their computer and open it in a browser, as above.
      
      
   2. They will need to click the Use a one-time passcode option. It can take a while for this to load. 
      
      
   3. They will get a window that says an email with a passcode has been sent to the same email address the encrypted message was sent to. 
      
      
      
      
   4. They should check their email Inbox for the passcode and copy and paste it into the One-time passcode box in the browser window
      
      
   5. Click Continue. 
      
      
   6. They will now see the contents of the encrypted message.