

Unfortunately, the only resolution we stumbled across was to delete the Active Directory user account and associated mailbox, and create brand new items for both. Export the mailbox contents to PST, delete the mailbox, and create a new one on Exchange 2016.Export the mailbox contents to PST, delete the mailbox, and create a new one on legacy server and move to Exchange 2016.Delete the Outlook profile and recreate.Also, the issue exists on other workstations and varying Outlook clients while attempting to connect to the same mailbox.Įfforts to resolve the issue that were unsuccessful, included… Also, the users are able to connect to their Exchange 2016 mailbox using OWA and smart devices.Īnd when the mailbox is moved back to the legacy Exchange server, Outlook connects without issue. And, unfortunately, during the Outlook profile reconfiguration, the option to run the Outlook connection status and autoconfiguration tests are unavailable to see what the issue might be from the workstation.Īutodiscover is confirmed to be configured properly and works fine and tests using work without error.Īgain, other users are able to connect to their Exchange 2016 mailboxes. What’s odd to me is that this experience is inconsistent with other mailboxes that were previously moved to Exchange 2016 and Outlook is connecting without issue.Įssentially what happens after an existing mailbox has been moved to Exchange 2016 and the Outlook client is restarted, the autoconfiguration process fails during the “Log on to server” task.Īs a result, Outlook is never able to attach to the mailbox on Exchange 2016 or update the existing profile. One of the latest issues I’ve experienced has been with an Outlook client (2010 or newer) not connecting to a mailbox that has been moved to (or even newly created in) Exchange 2016. Lately, it seems as if I run across some new issue or anomaly on a weekly basis after implementing Exchange 2016 for one customer or another. It’s quite frustrating but it does wonders for building a personal knowledge base.
