Forum Discussion
Users are flooded with NDR emails (GraphTransactionItem)
Hello! We desperately need help in determining where thousands of NDR emails are coming from. This is Exchange Online only, not a hybrid deployment. About a month ago all mailboxes on one of the do...
Can you post the support incident number? This might help some of the Exchange engineers look into the problem.
It certainly seems like something odd is happening somewhere along the line... The name "graph transaction item" might make you think that it has something to do with providing the Office Graph with some data, but it could be something completely different!
Our open support ticket # is 617010594021142. There's also this https://answers.microsoft.com/en-us/msoffice/forum/msoffice_o365admin-mso_other/office-365-mail-flow-backscatter/b3997119-95c4-4cb6-9753-f746b49571e3 addressing the same issue, but no solution so far.
