Cannot send emails through OUTLOOK using my email address ******@hotmail.com

Question

I getthe following error information:

Error is [0x80004005-0x80004005-0x00000501].

 

Exchange response headers:

      request-id: 0f59b1c1-e5ac-6fbc-3a0e-95d7a5a283d9

      X-ServerApplication: Exchange/15.21.0025.012

      X-FEServer: LO4P265CA0034

      X-CalculatedBETarget: OSDP279MB1107.NORP279.PROD.OUTLOOK.COM

      X-RequestId: {AE383DB7-9B60-4EEF-A8C0-14FDC0404BC8}:44

      X-ClientInfo: {93B62ECE-3568-46C3-8A7E-A0DE171FA8AC}:359000014

      X-ElapsedTime: 59

      X-BackEndHttpStatus: 200

      X-ResponseCode: 0

      X-RequestType: Execute

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ROPs Summary:

 

      0: ropRelease (1) Processed(1) Completed(0)

            ROP result: 0

            Response codes: 0

      1: ropSetProps (10) Processed(1) Completed(0)

            ROP result: 0

            Response codes: 0

      2: ropSetProps (10) Processed(1) Completed(0)

            ROP result: 0

            Response codes: 0

      3: ropFlushRecipients (14) Processed(1) Completed(0)

            ROP result: 0

            Response codes: 0

      4: ropSetProps (10) Processed(1) Completed(0)

            ROP result: 0

            Response codes: 0

      5: ropTransportSend (74) Processed(1) Completed(0)

            ROP result: 0

            Response codes: -2147467259

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Response Exceptions:

 

ROP Index: 5

ROP Associated: ropTransportSend (74)

Microsoft.Exchange.Data.Storage.QuotaExceededException: Microsoft Unified Storage is full.

   at Microsoft.Exchange.Data.EventHandler.UnifiedStorageQuota.UnifiedStorageQuotaLogic.EnforceQuota(EventHandlerEvent theEvent, ICoreItem item, MonitoringInfo& monitoringInfo)

   at Microsoft.Exchange.Data.EventHandler.UnifiedStorageQuota.UnifiedStorageQuotaEventHandler.Handle(BeforeItemSendEvent beforeItemSendEvent)

   at Microsoft.Exchange.Data.StoreObjects.EventHandler.EventDispatcher.ExecuteHandlerTEvent

   at Microsoft.Exchange.Data.StoreObjects.EventHandler.EventDispatcher.DispatchTEvent

   at Microsoft.Exchange.Data.Storage.CoreItem.PreprocessItem(String apiName)

   at Microsoft.Exchange.Data.Storage.CoreItem.TransportSend(StorePropertyDefinition[]& properties, Object[]& values)

   at Microsoft.Exchange.Data.StoreObjects.ProxyCoreItem.TransportSend(StorePropertyDefinition[]& properties, Object[]& values)

   at Microsoft.Exchange.Data.Storage.Items.CloudCacheSendProxyCoreItemDecorator.TransportSend(StorePropertyDefinition[]& properties, Object[]& values)

   at Microsoft.Exchange.RpcClientAccess.Handler.StorageObjects.ItemWrapper.TransportSend(StorePropertyDefinition[]& properties, Object[]& values)

   at Microsoft.Exchange.RpcClientAccess.Handler.Message.TransportSend()

   at Microsoft.Exchange.RpcClientAccess.Handler.RopHandler.<>c__DisplayClass156_0.<TransportSend>b__0()

   at Microsoft.Exchange.RpcClientAccess.Handler.ExceptionTranslator.TryExecuteCatchAndTranslateExceptionsTResult

 

 

Transport-Send failed: failure enum(25), HResult(0x00000000), EC(-2147467259).

Transport-Send failed: failure enum(22), HResult(0x00000000), EC(-2147467259).

Submit-Message failed: message id(2), failure enum(13), HResult(0x80004005), EC(-2147467259).

Answer 1

The error details show QuotaExceededException: Microsoft Unified Storage is full. This indicates the mailbox or associated unified storage is over its quota, so Outlook cannot submit new messages.

To resolve this, free up space in the mailbox and then try sending again:

1. Permanently delete items:
   • Empty Deleted Items/Trash.
   • Empty Junk Email.
   • In any Archive folders, delete items that are no longer needed.
2. Reduce mailbox size further:
   • Sort large folders (Inbox, Sent Items) by size and delete or archive large messages, especially those with attachments.
   • After deleting, empty Deleted Items again so space is actually reclaimed.
3. If using Outlook.com/Hotmail storage for other data (calendar, contacts, etc.), also remove unneeded items there.
4. Wait a short time for the quota status to update on the server, then restart Outlook and try sending a new test message.

If messages are still not sending after significant cleanup and some time has passed, contact Microsoft support so they can check the account’s unified storage quota and clear or adjust it on the backend.

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References:

• Outlook sync issues cause emails to be stuck in the Outbox and undeliverable mail items