Dear Merkians,   We want to block Port 80 outbound on our Meraki MX.   We permitted legitimate traffic based on Microsoft URLs and IP Addresses on the below link https://docs.microsoft.com/en-us/office365/enterprise/urls-and-ip-address-ranges   At the end we block Port 80, once we block port 80, outlook for the users which are connected via meraki wireless are not being able to connect.   Appreciate your support in this regards   ... View more