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554 5.2.0 Error - AdditionalRenEntryIdsEx is too large and requires streaming
Greetings! We are using Exchange Online in a hybrid environment with Exchange 2016 (Version 15.1 Build 2375.7) We are experiencing a recurring 554 error with specific users. The error seems...
Roel80 Nice. That is different from what we were doing. We have been deleting the PR_ADDITIONAL_REN_ENTRYIDS_EX attribute and letting Outlook rebuild it. After some time, the issue re-appears.
Perhaps replacing it with that data will help. Fingers crossed!
Yes fingers crossed, untill now it works!