-
Title
NM: Troubleshooting O365 Autodiscover Connectivity -
Description
NM: Troubleshooting O365 Autodiscover Connectivity -
Resolution
Issue
Troubleshooting O365 Autodiscover Connectivity
Solution
The following information will help you troubleshoot your autodiscover issues, to confirm if the issue is connectivity between the migration workstation and Autodiscover is not set in the customer on-prem DNS. Notes Migrator 4.6.x and higher, uses autodiscover to connect to the user mailbox. This is new, and is not used in previous releases. This may be why you can migrate successfully with a previous version of our product, but are failing after an upgrade.
To prove this is the issue, you can test the following from the migration workstation
Open Outlook and create a new MAPI profile using the mail box user's SMTP address (username@customerdomainname.com (not the onmicrosoft.com address). This process should fail to discover the user's mailbox.
You may also use the Testconnectivity.microsoft.com page to test Microsoft autodiscover using the mailbox user SMTP address and the account is the migration user SMTP address and password.
https://testconnectivity.microsoft.com/
Go to the Office 365 tab, and use the Outlook Autodiscover functionality... the top address on the next screen is the smtp address you're trying to discover, for the admin account you can use your migration profile.
Here's a link to the standalone windows application, which performs the autodiscover and a few other tests here https://diagnostics.outlook.com/#/?env=ExRCA
this works well for on-prem cases where the online tool doesn't work.A CNAME DNS record needs to be created for auto discover. Contact your DNS hosting provider and ask them to create the following CNAME record. If you have access to the control panel for your DNS, you can make this change yourself.
Hostname: autodiscover
Record Type: CNAME
TTL: 300 (if required)
Address: autodiscover.Contact your administrator to resolve this issue. Once this is complete, you may start migrations.
Related Article: NM: Migration failed with the following Status: AutoDiscover Failure