Port Requirements for Exchange Online

Updated

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To use the express configuration option in the Office 365 guided setup, on the Web Server, you must open the ports that are used to communicate with the Command Center.

Environment

Source

Destination

Protocol

Ports

URLs

All regions (US GCC)

Access node (Mailbox)

Exchange Online

HTTPS

  • 80

  • 443

  • https://www.office.com

  • https://outlook.office365.com/Powershell-LiveID

  • https://outlook.office365.com/EWS/Exchange.asmx

  • https://login.microsoftonline.com

  • https://graph.microsoft.com

China

Access node (Mailbox)

Exchange Online

HTTPS

  • 80

  • 443

  • https://partner.outlook.cn/PowerShell

  • https://partner.outlook.cn/EWS/Exchange.asmx

  • https://login.chinacloudapi.cn

  • https://microsoftgraph.chinacloudapi.cn

Germany

Access node (Mailbox)

Exchange Online

HTTPS

  • 80

  • 443

  • https://outlook.office.de/PowerShell-LiveID

  • https://outlook.office.de/EWS/Exchange.asmx

  • https://graph.microsoft.de

  • https://login.microsoftonline.de

US Government (US GCC HIGH)

Access node (Mailbox)

Exchange Online

HTTPS

  • 80

  • 443

  • https://portal.azure.us

  • https://login.microsoftonline.us

  • https://graph.microsoft.us/

  • https://outlook.office365.us/powershell-liveid/

Use the Express Configuration Option in the Office 365 Guided Setup for Exchange Online