Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.
One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.
|Office 365 Public IP configuration on DNS ?||7||51|
|Prepoluate a Global Access List in exchange 2013||1||19|
|Impact of sending Global meeting request - Exchange 2013||2||16|