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S/MIME certificates

What is an S/MIME certificate?

NEW: How do I get a new certificate as an employee?

How do I renew a user or mailbox certificate as an employee (of the university)?

How do I obtain a certificate for a functional mailbox?

Validity and deadlines


Configuration of email clients

How do I install the employee certificate in Outlook?

How do I install the employee certificate in Thunderbird?

How do I install an S/MIME certificate for group mailboxes in Outlook?

How do I install an S/MIME certificate for group mailboxes in Thunderbird?


Usage

How can I sign an e-mail? [Outlook]

How can I send an encrypted e-mail? [Outlook]


Deutsche Version: Zertifikate