Microsoft (Outlook.com and Microsoft 365) · permanent error
554 5.2.0: clutter folder missing in the recipient mailbox
Delivery to one Exchange Online mailbox fails because Clutter is turned on for it but its Clutter folder is missing.
- Microsoft
- Provider
- Permanent (5xx)
- Class
- Sources checked
- Author
At a glance
- Code
- 554 5.2.0
- Temporary or permanent
- PermanentRefused for good: the message comes back to the sender, and resending it gets the same answer.
- Who has to act
- The recipient's side. Their mail admin has to change something; you can tell them.
- What the server says
554 5.2.0 STOREDRV.Deliver.Exception:ObjectNotFoundException.MapiExceptionNotFound
What it means
Microsoft documents 554 5.2.0 STOREDRV.Deliver.Exception with MapiExceptionNotFound and the message Cannot get ID from name for one cause: the Clutter feature is enabled for the user, yet the Clutter folder is missing from the mailbox. Delivery then fails for people writing to that mailbox, including through distribution groups. The workaround is to turn Clutter off for the user, in Outlook on the web or with Set-Clutter in Exchange Online PowerShell.
Common causes
- Clutter is enabled for the recipient.
- The recipient's Clutter folder is missing from the mailbox.
How to fix it
- 01Tell the recipient or their admin; the sender cannot fix it.
- 02The recipient can clear Separate items identified as clutter in the Outlook on the web settings.
- 03Admins: run Get-Mailbox user@contoso.com | Set-Clutter -Enable $false in Exchange Online PowerShell.
Sources
What this page rests on, checked on 20 Oct 2026. The explanation is ours; the reply text is the server's.
Related codes
- 550 5.2.0External contact has no valid primary address.Exchange Online could not deliver to an external contact because its primary SMTP address is missing from its proxy addresses or invalid.
- 554Transaction failed.The server permanently refused the transaction, often after receiving the message data or straight away when the connection opened.
Further reading
All 111 Microsoft codesEvery code in the wikiPaste your own bounce