From the menu, select Test E-mail AutoConfiguration….ģ.
While Outlook is running, press and hold down the CTRL key, and then right-click the Outlook icon in the system tray or notification area on the lower-right corner of the screen.Ģ. Please follow the steps to test AutoDiscover and then paste the results here for further research.ġ.
What changes have you made before this issue occur? This forces Outlook to bypass the initial root domain queries and get the autoodiscover settings with minimal delay.įor domain-joined Windows clients, you may use the Office 2013 Administrative Templates or Office 2016 Administrative Templates to apply this workaround on multiple computers.ĭownload and extract the files, and then copy the content of the ADMX folder to the PoliciesDefinitions folder in the SYSVOL domain share.Does this occur to all users? Or users migrating to Office 365? To workaround this issue, until a more permanent solution can be applied, you may use the following Registry settings to force Outlook to bypass the root domain discovery and redirect to the autodiscover CNAME or A record to resolve the address for autodiscover settings. Most organizations use a autodiscover CNAME or A record to resolve the autodiscover address, which is also the recommended solution for both on on-premise Exchange deployment and when all mailboxes are placed in Exchange Online. The situation is furthermore complicated when the option to manually enter the Exchange server settings is removed in Outlook 2016.Ĭommon for these cases is that the internal autodiscover CNAME record is added in a split-DNS zone and resolves to – straight out of the Office 365 domain registration wizard.ĭigging deeper, the Test E-mail AutoConfiguration reveals that the autodiscover process is delayed by a series of (16) queries and the subsequent timeout for autodiscover settings from the root domain, like. As the use of Office 2016 has started to gain momentum, a number of organizations have experienced cases where Outlook 2016 take extraordinary long time to setup a new profile with a hosted Exchange 2010/2013 solution, like Exchange Online.
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