Email encryption

Manual encryption when composing a new message

1. Open a new email message in its own window
2. Select Settings at the top
3. Click Encrypt

1. Open a new email message in its own window
2. Select File at the top
3. Select Encrypt → Encrypt Only

• Attachments containing confidential information must be encrypted before sending. The easiest tool for this is 7-Zip, which allows you to combine multiple files into a single archive and encrypt it strongly at the same time. Instructions for 7-Zip and sending attachments can be found on the 7-Zip page.
• Email encryption features:
  • PDF files remain encrypted on the recipient’s side
  • Other attachments are protected during delivery, but the protection may not remain permanently
  • If an attachment is added from the TUNI M365 service, the message will contain a link to the file
    → Remember to grant the recipient access to the file before sending the message

• If the recipient is within our organization and encryption features are enabled, the message opens automatically without additional steps.
• An encrypted message can be identified by the padlock icon shown in the message list.
• When opening the message, a notification appears at the top indicating that the message is encrypted.

• The recipient receives a notification about the encrypted message
• The message may appear suspicious, as similar formatting is also used in phishing emails
  → It is recommended to agree in advance on sending an encrypted message so that it is recognized as trustworthy

• Sent to the same email address at the recipient’s request
• Valid for 15 minutes
• If the passcode expires or does not work, a new one can be requested from the same view
• Once the code is entered, the message will open