Event ID - 8026

Event Id8026
DescriptionLDAP Bind was unsuccessful on directory <directory name> for distinguished name <value>. Directory returned error:[0x<error code>] <error message>. <connection agreement name>
Event InformationAccording to Microsoft:
The Recipient Update Service is configured to use a Windows domain controller that was demoted. When the Recipient Update Service tries to query the Windows domain controller for an update, it cannot contact it.
If you determine that the issue was caused by the demotion of a Windows domain controller, you can resolve this issue by following these steps:
1. Open Exchange System Manager.
2. Expand the Recipients container, and then click Recipient Update Services.
3. Double-click each Recipient Update Service, and then change the Windows domain controller setting to the new Windows domain controller in the domain.
Reference LinksMSExchangeAL events 8026 and 8260: Cannot access Address List configuration information

Catch threats immediately

We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.

See what we caught

Did this information help you to resolve the problem?

Yes: My problem was resolved.
No: The information was not helpful / Partially helpful.