Attention!
Risk of data loss!

With this certificate, you can digitally sign emails and/or send and receive encrypted messages.

Please note that encrypted emails are no longer readable without the corresponding certificate!
Even if the certificate has already expired, it will still be needed!

You have no control over others sending you encrypted emails. Store the certificate (especially the private key) and the associated password in a safe place.

The ITS cannot help you if the private key and/or password gets lost. Encrypted emails are then irretrievably lost and can no longer be read or restored from a backup.

This is how you can send digitally signed mails using Outlook under Windows:

1

To send digitally signed mails, you need

your personal certificate and the corresponding password (instructions here)
installed Office 365 with Outlook with your Uni Bayreuth mail account set up (instructions here)

2

Open Outlook and click File up left and then Options in the left area.

3

In the newly opened window, click Trust Center on the left and then Trust Center Settings... to the right.

4

Another new windows opens. In it, click Email Security on the left side and then under Digital IDs (Certificates) onto Import/Export...

5

Again, a new window will appear. Next to Import File:, click on Browse... and select your personal certificate file.
Afterwards, enter the password for your certificate file. You have defined it during the download of your certificate – it is independent from your Uni Bayreuth user account password!

Once you're done, click OK.

6

Confirm the security prompt asking if you want to import the private key from your certificate file with OK.

7

Your certificate has now been imported.

Back in the Trust Center, please tick the check boxes as shown in the screenshot, so only tick

Add digital signature to outgoing messages
Send clear text signed message when sending signed messages

After that, next to Default Setting:, click on Settings...

8

The window Change Security Settings opens.

Tick the checkboxes as shown in the screenshot at

Default Security Setting for this cryptographic message format
Default Security Setting for all cryptographic messages
Send these certificates with signed messages

and select under

Hash Algorithm: SHA256

and under

Encryption Algorithm: AES (256-bit)

Save by clicking OK.

9

You can now close the Trust Center by clicking OK.

From now on, your mails will be sent digitally signed. This can be checked by verifying that Options -> Sign is selected when composing a new mail.

Problems with these instructions? Let us help you! Contact us fast and easy through our contact form!

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