When I start a project with a customer, they ask me to asses them in order to evaluate which ports and IP’s are necessary to be opened in order to work with Office 365 services.
Whenever I can, I try to give them a complete solution, but in other cases I heard from them how complicated is to configure the firewalls due to the number of IP ranges and ports required for Office 365.
How customers are not sure which services will be used I give them the following URL: IP’s and Ports
So, by using the following link, will be very easy for them to configure the services and to use them in a proper way.
till next time!