Port Requirements for Exchange Online

Important

Port Requirements are applicable only to on-premises and self-managed deployments.

To use the express configuration option in the Microsoft 365 service catalog, on the Web Server and the access nodes, you must open the ports that are used to communicate with the Commvault Software.

Environment	Source	Destination	Protocol	Ports	URLs
All regions (US GCC)	Access node (Mailbox)	Exchange Online	HTTPS	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	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	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	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 Microsoft 365 Service Catalog for Exchange Online

Port Requirements for Exchange Online

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