The Remote Connectivity Analyzer (RCA) tool performs a more comprehensive Autodiscover test. If things didn't work as expected, use Outlook to view the Autodiscover redirection for troubleshooting help. Ultimately, the redirection takes place to the namespace in Office 365.
Scroll through the various Autodiscover connection attempts in the log output and check the Autodiscover URL redirection based on the.Once the test completes, click the Log button to reveal the log output of the Outlook Autodiscover test.Click the Test button to start the Autodiscover test.The Use AutoDiscover option should be the only checkbox selected
MAIL DESIGNER 365 REDIRECT URL CAUSE ISSUES PASSWORD
In the resulting window, ensure the correct email address and password are specified for the user account.While holding down the control key, right-click the Outlook icon in the system tray and choose the Test E-mail AutoConfiguration option.One way to see this redirection in action is to use the Autodiscover test feature in the Outlook client. value contained in the Autodiscover request was synchronized into Office 365 against the relevant object. Office 365 will accept this Autodiscover request and locate the correct recipient - the. With Fabrikam, this redirection goes to the namespace, which itself points to Office 365. However, the presence of the target address attribute value on the associated Active Directory object will cause the on-premises CAS to issue a redirect request to the specified TargetAddress namespace.
In a hybrid scenario, an Autodiscover request made after a mailbox migration is presented to the on-premises Exchange CAS as normal. This is key to how Autodiscover requests are redirected to Office 365 once a mailbox migrates to Exchange Online. Part of migrating a mailbox to Office 365 is configuring the associated on-premises Active Directory user object's TargetAddress attribute with the corresponding. This new recipient information is then synchronized into Office 365 for Exchange Online. This ensures that all on-premises objects get a secondary SMTP proxy address based on. When configuring an Exchange hybrid deployment, the coexistence domain is added to the on-premises Exchange organization's email address policies. In Fabrikam's example, the coexistence domain is. The coexistence domain is automatically configured using the 'mail' subdomain in the format. For example, Fabrikam, a fictional Microsoft company, might join Office 365 and choose as its initial Office 365 domain. coexistence domain - is the unique name chosen when an organization signs up for Office 365. It is also used during hybrid routing to direct messages to Office 365.
The TargetAddress attribute is populated on an Active Directory object whose corresponding mailbox is on Office 365, and serves to ensure that the Autodiscover request is redirected to the specified target address. In a hybrid setup, in which not all mailboxes have been migrated to Office 365, Autodiscover points to the on-premises Exchange infrastructure so that it remains functional for on-premises mailboxes.Īctive Directory TargetAddress attribute is a key concept in how Exchange Autodiscover functions in a hybrid scenario for mailboxes that are migrated to Office 365. These URLs must reach the on-premises Exchange CAS running the Autodiscover service. When Outlook cannot make a direct connection to an SCP - such as when connecting externally via an Internet connection - Outlook attempts to connect to the Autodiscover service via two pre-defined URLs based on the SMTP domain of the user's email address. Outlook creates an SCP each time an Exchange Client Access Server ( CAS) is installed, and the SCP provides the URL used to contact the Exchange Autodiscover service. When connected to a corporate network, the domain-joined machine that runs Outlook uses a Service Connection Point (SCP) to retrieve the Autodiscover endpoint. For an organization running an on-premises deployment, the key scenarios of how Autodiscover operates - internally and externally - affect a client connection to the corporate network.
The Outlook Autodiscover service is a critical component of an Exchange deployment.
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