Encrypting Data with Guard

Encrypting Email Conversations

Sending encrypted emails

You have the following options:

How to enable S/MIME encryption:

  1. Click the Settings icon in the menu bar. Click on All settings.

    You can also click on Settings in the App Launcher.

    The Settings window opens.

  2. Click on Guard in the left pane. Click on S/MIME in the right pane.

  3. Enable Enable S/MIME.

    If S/MIME encryption should be set as default, enable Default to using S/MIME for signing and encryption below Defaults.

How to send an encrypted email:

  1. If S/MIME encryption is enabled, you can choose between S/MIME and PGP. To do so, click the Options icon in the button bar of the email edit window.

    Below Security, select Use PGP or Use S/MIME.

  2. Click the Enable encryption icon in the button bar.

    If you are not signed in to Guard, the window for entering the Guard security password opens. Enter the password.

    A function bar will be displayed above the email text. A text will be displayed within the function bar notifying you about the encryption of the email.

    Icons next to the recipients indicate whether the message can be encrypted for this recipient. If hovering over an icon, a description will be displayed.

  3. In order to show further options, click on Options in the function bar.

    • In order to additionally sign the email, enable Sign email.

    • To enable The email recipient to send an encrypted reply, the recipient needs to have your public key. You can send your public key as attachment. To do so, enable Attach my public key.

    • When using PGP, the following option applies:

      You can set the PGP format if the Show advanced settings when composing mail option has been enabled in the Guard settings under Advanced.

      By default, encrypted emails are sent in Mime format. Some older email clients only support PGP/Inline. If the recipient uses such a client, enable Inline.

      Note: If you use Inline, you can not send emails in html format.

    You can also use the Options menu in the button bar to sign the email or to send your public key as attachment.

  4. Click on Send.

    When sending to new recipients, a window is displayed that allows to send notes for opening the encrypted email to the recipients.

User interface:

Related topics:

Parent topic: Encrypting Email Conversations