Category: Firewall Ports for Office 365

All the port requirements for Office 365 connectivity

Skype for Business Online for Office 365 Firewall Requirements

November 7, 2013

The following are the requirements of Skype for Business Online for Office 365, note this information can change as the service evolves. This is from the clients machine to Office 365 Firewall Ports Port Destination Protocol Client Usage Direction 443 TCP SIP Signalling Outbound 443 TCP Audio, Video, Application sharing sessions and Web Conferencing Outbound 3478 … More Skype for Business Online for Office 365 Firewall Requirements

Firewall Ports for Office 365

June 14, 2012

I have been asked many times for the port information and tried many ways to try and portray this in a manner which is simple to understand. For further URL’s IP’s please review the following Microsoft information – https://support.office.com/en-us/article/Office-365-URLs-and-IP-address-ranges-8548a211-3fe7-47cb-abb1-355ea5aa88a2?ui=en-US&rs=en-US&ad=US#BKMK_Portal-identity. I will maintain the separate workloads from this blog but it sometimes it is not always … More Firewall Ports for Office 365