11.2.2. Sending encrypted E-Mails

The following options exist:

Sending an encrypted E-Mail. 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:

Compose an E-Mail in the E-Mail app as usual.

In the Compose page, click the Encrypt icon on the upper right side.

You can also click on Security below the subject. Depending on the configuration of the Guard security settings, the menu contains different entries:
- If Show advanced settings is disabled, click on Secure.
- If Show advanced settings is disabled, click on Secure.
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 additionally sign the E-Mail, click on Security. Enable Sign.
If Show advanced settings is enabled in the Guard security settings, you can use further options. To do so, click on Security. You can activate the following options:
- 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 PGP Inline.
  
  If you use PGP Inline, you can not send E-Mails in html format.
- 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 key.
Click on Send encrypted.

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

Also see:

Encrypting Data with Guard