When you click on a link to a certificate, a security warning will be displayed informing you that it is a security certificate. Click on ‘Open’.

A warning is displayed when a link to a certificate is opened.

Save the certificate onto your computer by right-clicking the link to the certificate and selecting ‘Save Link As...’:

To send encrypted emails from Outlook, you must create a contact and assign the saved certificate to it.

To do this, from the Outlook menu select 'Home' > ‘Address book’:

Select from the menu 'File' > 'New entry':

Select 'New contact' and click 'OK':

In the field 'Name', enter a name for the contact to be created (e.g. IPI - Trade marks) and enter the email address in the field 'E-mail' (e.g. tm.admin@ekomm.ipi.ch).

Then click on the button 'Certificates' button and import the previously saved certificate belonging to the email address entered .

Click on 'Save and close' to save the changes.

To send encrypted emails in Thunderbird, you need your own encryption certificate (e.g. SwissSign-Zertifikat Silver), because Thunderbird encrypts the email with your certificate to store it in the 'Sent' directory.

Go into Thunderbird's settings: under settings click on 'Extras', then 'Advanced', then on the 'Certificates' tab. To open the certificate manager, click on 'Your certificates'.

Select 'Import...' and then click 'OK'.