![]() ![]() Install a Windows-based Certification Authority and set up a public key infrastructure to issue S/MIME certificates. Generally, you will need to do the following steps: The steps that you follow to set up S/MIME with each of these end points is slightly different. ![]() You can set up S/MIME to work with any of the following end points: ![]() Supported scenarios and technical considerations ![]() For more information about AD DS, see Active Directory Domain Services. Your AD DS must be located on computers at a physical location that you control and not at a remote facility or cloud-based service somewhere on the internet. To use S/MIME in supported email clients, the users in your organization must have certificates issued for signing and encryption purposes and data published to your on-premises Active Directory Domain Service (AD DS). Use the guidance in the topics linked here along with the Exchange Management Shell to set up S/MIME. For a more complete background about the history and architecture of S/MIME in the context of email, see Understanding S/MIME.Īs an Exchange administrator, you can enable S/MIME-based security for the mailboxes in your organization. It also helps enhance privacy and data security (using encryption) for electronic messaging. To do this, S/MIME provides for cryptographic security services such as authentication, message integrity, and non-repudiation of origin (using digital signatures). It will also help people who receive messages to be certain that the message came from the specific sender and not from someone pretending to be the sender. When you use S/MIME with an email message, it helps the people who receive that message to be certain that what they see in their inbox is the exact message that started with the sender. S/MIME allows you to encrypt emails and digitally sign them. S/MIME (Secure/Multipurpose Internet Mail Extensions) is a widely accepted method (or more precisely, a protocol) for sending digitally signed and encrypted messages. ![]()
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