We provide little to no support on how to install an SSL Certificate. There are countless combinations of “hosting providers X hosting panels X operating systems X web servers types X technologies X release versions” for us to be able to provide support for all of them.
Also, there are too many factors to take into consideration when installing an SSL Certificate for the setup to be correct and secure. These being said, we politely prefer to decline to offer any SSL installation instructions over the phone, email or ticketing system.
Here are two links where you can start the research on how to use your SSL Certificate with Outlook / Office 365:
There is a lot of information online on your particular server setup, so you may want to look into that as well. Alternatively, we recommend hiring a web developer or a system engineer who has installed SSL Certificates many times before.