Exchange Mailbox Agent User Mailbox Hybrid - Port Requirements

All regions

Access Node (Mailbox)

Microsoft Exchange Online

HTTPS

80,443

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

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

China region

Access Node (Mailbox)

Microsoft 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

• https://partner.outlook.cn/

Germany region

Access Node (Mailbox)

Microsoft Exchange Online

HTTPS

80,443

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

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

• https://login.microsoftonline.de/

• https://graph.microsoft.de/

• https://outlook.office.de/

US Government

Access Node (Mailbox)

Microsoft Exchange Online

HTTPS

80,443

• https://portal.azure.us

• https://login.microsoftonline.us

• https://graph.microsoft.us/

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

U.S. Government GCC High endpoints

Access Node (Mailbox)

Microsoft Exchange Online

(HTTP)HTTPS

80,443

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

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

• https://login.microsoftonline.us

• https://graph.microsoft.us