How do I install a SSL/TLS certificate on Microsoft Exchange 2010?
Before you begin
- Never share private key files.
- If you plan on using the same certificate on multiple servers always transfer the private key using a secure method (e-mail is not considered a secure method of transfer).
- Make sure you run the SSL Server Test at the end of the installation process to check your certificate configuration against SSL/TLS Best Practices.
Installing your SSL/TLS Certificate on Microsoft Exchange 2010
1. Click the Download button in the pickup wizard to download your certificate files. Clicking the download button will produce a zip file that includes your Server Certificate, the chain/intermediate certificates(s) and the Root certificate. Extract the files from the zip file.
2. On the server, go to Start > Run > type MMC and hit enter.
3. Click File > Add Remove Snap-in.
4. Select Certificates and click Add.
5. Select Local Computer and click Finish.
6. Click Close.
7. Expand Certificates on the left hand side of the console window.
8. Expand the Trusted Root Certification Authorities folder and click on the Certificates sub-folder.
9. Important: Check the list of Trusted Root Certificates to see if there is a root labeled Root Certification Authority - G2. If this root is present, delete the root from the list. You will install another root certificate and chain your certificate to that root to provide backwards compatibility with older devices that do not include the newer SHA-2 root certificate.
10. Right click on the Certificates sub-folder under Trusted Root Certification Authorities and select All Tasks > Import.
11. In the import wizard, browse to the Root.crt file downloaded in step 1 and complete the wizard.
12. In the MMC console, expand the Intermediate Certification Authorities folder. Right click on the Certificates sub-folder and select All Tasks > Import.
13. In the import wizard, browse to the Intermediate1.crt file downloaded in step 1 and complete the wizard.
14. Right click on the Certificates sub-folder under Intermediate Certification Authorities and select All Tasks > Import.
15. In the import wizard, browse to the Intermediate2.crt file downloaded in step 1 and complete the wizard to complete the certificate chain setup process. You should see your Intermediate certificates listed in the Intermediate Certification Authorities folder. You are now ready to install your signed server certificate.
16. Open the Exchange Management Console as an Administrator. Go to Start > Exchange Management Console.
17. Click on Server Configuration in the left tree. On the right side under Actions, select Complete Pending Request.
18. Browse to the ServerCertificate.crt file that you downloaded in step 1. Select the file and click Complete.
19. A confirmation window will appear. Click Finish.
20. Now that the certificate is fully imported, you must assign your Exchange services. Right click on the new certificate under Exchange Certificates and select Assign Services.
21. Select the name of your Exchange server from the list and click Next.
22. Chose the Services that you wish to enable on your Exchange server. In most cases, Internet Information Services (Outlook Web Access, Active Sync) and Simple Mail Transfer Protocol are selected.
23. Complete the wizard to assign the services to your new certificate. You will be prompted to overwrite the existing certificate. Click Yes to overwrite and complete the process.