Bypass firewall checking for Exchange Online data paths

article #899, updated 595 days ago

If your firewall lets you bypass data checks by FQDN, this works well; just import this into an alias and use that as the “To” for a rule called ExchangeOnline, for ports 80 and 443:

*.office.com
*.office365.com
*.office.net
*.onmicrosoft.com
*.microsoftonline.com
*.microsoft.com
*.live.com
*.windows.net
*.microsoftonline-p.com
*.microsoftonline-p.net
*.microsoftonlineimages.com
*.msecnd.net
*.msocdn.com
*.glbdns.microsoft.com
*.activedirectory.windowsazure.com
*.verisign.com
*.symcb.com
*.symcd.com
*.omniroot.com
*.geotrust.com
*.entrust.net
*.public-trust.com

The above is condensed from here. It includes only Exchange Online, there are some other items to be added for other Office 365 services including Skype etcetera.

Categories:   Exchange and Exchange Online   Office 365