You will need to login to outlook.office365.com
It will ask for you to enter your email address and then forward you to the Jet Linx Login Page.
Enter your personal Jet Linx username and password.
If you haven't logged in here before it will ask you to setup your mailbox and you can just click next until it closes. Then move to part 2.
In the bottom right of your screen, you will see this...
Click on the arrow and you will see a yellow triangle on top of the exclaimer icon
Then you will be prompted to put in your Jet Linx email and password. Restart outlook and then wait 20 minutes and it should be there. If not then let me know.