#NDRerror

Microsoft fixes Outlook email sending issue for users with many folders

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October 1, 2024 at 04:29PM Microsoft has resolved an issue in Outlook for Microsoft 365 that caused problems sending emails for users with too many nested folders. The problem may result in a Non-Delivery Report error. A fix will be rolled out to release channels later in October and December. Temporary workarounds are also available … Read more

Microsoft: Outlook email sending issues for users with lots of folders

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December 8, 2023 at 01:53PM Microsoft has acknowledged a new issue affecting Outlook for Microsoft 365 users, causing email-sending problems due to nested folders. The problem is related to an older issue concerning mailboxes with more than 500 shared folders. Workarounds include reducing nested folders, keeping mailbox folders collapsed, and avoiding certain online actions in … Read more