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Autodiscover infected with virus
My client has Exchange server 2016 running on windows server 2016 Standard. After the recent zero day we patched the server right away and ran the mitigation tool. We have also run several full Micro...
Well I found the solution in this case. Apparently the external URL used for the OAB URL was rewritten and changing it back to the original value fixed it.
Have you found a solution? We have a client which has the exact same issue. They are in the process of installing a new Exchange server to migrate the mailboxes, but not sure if the Autodiscover.xml error will disappear after the old Exchange is decommissioned and the clients connect to the new one.