Please find a list of typical namespaces that are required when setting up and installing Active Directory Federation Services (ADFS) 2.0 and rich coexistence/hybrid with Office 365

 

Namespace

Value

Description

On premise SMTP Namespace

Company.com

On-premise SMTP namespace

Online Tenant Namespace

Company.onmicrosoft.com

Name of the namespace given by Microsoft when the tenant is created

Service Namespace

Office365.Company.com

SMTP mail routing namespace for determining where the mailbox is located.

Delegation Namespace

Exchangedelegation.Company.com

Federation delegation to the Microsoft Federation Gateway. Allows sharing of free/busy between external organisations

Federation Service Name

Federation.Company.com

ADFS name that O365 will redirect clients to

Autodiscover

Autodiscover.Company.com

Autodiscover service for Outlook client on-premise

Autodiscover

Autodiscover.Office365.Company.com

Autodiscover service for Outlook clients migrated to O365

Written by Daniel Kenyon-Smith