XFOR: Using a Verisign Certificate with Exchange Server Secure Sockets Layer

When you set up Exchange Server to use Secure Sockets Layer (SSL) for Internet protocols such as Network News Transfer Protocol (NNTP), Simple Mail Transfer Protocol (SMTP), Post Office Protocol version 3 (POP3), and Internet Message Access Protocol (IMAP), you may want to use a certificate that you obtained from another source, such as Verisign.

You only need to have one certificate for each fully qualified domain name (FQDN). If you obtained a certificate from Verisign, perhaps for use with Microsoft Internet Information Server (IIS), you can also use the certificate for Exchange Server if it is running on the same computer.

You need to know the password for the original certificate request to install the certificate.

After you install the certificate on IIS, you can install the certificate in the same way for the Exchange Server protocols by using the Key Manager utility. If the original key file was misplaced, you can create a backup:

1. Start Key Manager, click Key, click Export Key, and then click Backup File.
2. Save the key to a file.
3. For each Exchange Server protocol, click Key, click Import Key, and then click Backup File.
4. Type the password for the original certificate.

For additional information about enabling SSL for Exchange Server, click the article number below to view the article in the Microsoft Knowledge Base: