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Office 365: How to Install SSL Certificate on Microsoft IIS 8 / 8.5

Follow the step by step instructions to Install SSL Certificate on Microsoft IIS 8 / 8.5

After CSR generation on Office 365 using IIS 8 / 8.5, it is necessary to proceed with SSL installation and assignation. We have summarized the instruction to install and assign SSL on Office 365 using IIS-8/8.5 server.

exchange ssl certificates

Install SSL certificate on Microsoft IIS 8 / 8.5

  1. Open SSL certificate contained in Zip file and save it on desktop.
  2. Go to Start >> Administrative tools >> IIS manager.
  3. Open IIS manager and on the left side, select hostname under Connection tab. Now click on server certificates from the center menu.
    server certificate IIS8
  4. On the right side Action menu, open Complete Request Certificate wizard.
    Complete Request Certificate
  5. You will see a dialogue box named Specify Certificate Authority Response. Now, click on three dot (…) button to browse .cer file. Enter any friendly name in Friendly name box. Select Personal to store certificate in next drop down box. Click OK button.
    Specify Certificate Authority Response
  6. Now, your certificate is installed. Now, you have to assign the certificate to the default website.

Assign SSL certificate using IIS 8 / 8.5

  1. Open IIS manager, under Connection tab, browse server name >> Sites >> Default website.
  2. On right side in Action tab, Browse Edit Site >> Bindings option.
  3. Now Click Add button in appeared dialogue box.
    Add site bindings
  4. You will see Add Site Bindings box where you have to enter below details.
    https 443
  5. Click OK button
  6. Your Certificate installation is completed.

SSL Installation Checker:

It is necessary to check the SSL installation as it can cause the error if it is not installed properly. To solve this issue, our SSL installation checker will help you, as you just have to enter website name and within few seconds, you will have thorough information about your SSL like serial number, key size, certificate type, etc. if any error is found, the SSL installation checker will give details about it.

About the Author

Pratik Jogi

Pratik Jogi is a cybersecurity visionary with an Electronics & Communications Engineering degree. He holds esteemed certifications like Microsoft MCSE and MVP. With over two decades dedicated to defending the digital frontier, his expertise in Server, Network, and Cyber Security reflects a genuine commitment to secure digital landscapes against emerging threats.