13.2.2. Sending encrypted E-Mails

The following options exist:

Send an E-Mail encrypted. Only you and the recipients can read the E-Mail content.
Sending an E-Mail with a signature. The signature ensures that the recipient is able to recognize whether the E-Mail content has been changed on the transport.
Sending an encrypted E-Mail with a signature.

How to send an encrypted E-Mail:

Click the Enable Encryption icon. A function bar will be displayed above the E-Mail text. A text will be displayed within the function bar notifying you about the encryption of the E-Mail.

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.
In order to show further options, click on Options.
- In order to additionally sign the E-Mail, enable Sign email.
  
  You can also click on the Options menu in the button bar.
- To enable The E-Mail 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.
  
  You can also click on the Options menu in the button bar.
- If Show advanced settings is enabled in the Guard settings, you can set the PGP format.
  
  Per default, encrypted E-Mails are sent in PGP Mime format. Some older clients only support PGP Inline. If the recipient uses such a client, enable Inline.
  
  Note: If you use Inline, you can not send E-Mails in html format.
Click on Send.

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

User interface:

Encrypting Data with Guard