Outlook Error 0x8004060c Code – Resolved

admin | Modified: December 19th, 2018 | Outlook

Outlook Error Code 0X8004060C

OST and PST both are essential files of Microsoft Outlook. Outlook is a commonly used email application in various organizations. Therefore, corruption in any of the format can create a big hurdle in between of the work because corruption leads to improper working of Outlook. Improper working means Outlook will start giving irrelevant or unwanted errors. Outlook error code 0x8004060c is one such sending receiving a reported error. For users who are working on Microsoft Outlook, an unknown error occurred error code 0x8004060c is a common error. These are the error messages users will get while sending or receiving the emails.

Error Message

  • “Task ‘Microsoft Exchange Server – Sending’ reported error (0x8004060c): ‘The message store has reached its maximum size. To reduce the amount of data in this message store, select some items that you no longer need, and permanently delete them.”
  • Task ‘EMAIL ADDRESS’ – Sending and Receiving’ reported error (0x8004060c): ‘Unknown Error 0x8004060C’
  • “Task ‘Microsoft Exchange Server – Receiving’ reported error (0x8004060c): ‘Unknown Error 0x8004060c”

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Reasons Behind the Outlook Error Code 0x8004060c

There are the possible reasons that may cause an Outlook error 0x8004060c:

  • During the corruption of OST or PST data files.
  • Due to connectivity or synchronization issues, OST file becomes inaccessible.
  • Over-sized OST file size, virus attack, crashing of Exchange Server, etc. are the responsible reasons behind the corruption of OST files.

Resolution for Send / Receive Outlook Error 0x8004060C

As explained earlier, Outlook error code 0x8004060C occurs due to oversized Outlook PST file. To Deal with growing PST file size, you will need to compact, archive or split Outlook PST to lessen the size of the file. Follow these methods to resolve the error problem:

Solution 1

The first thing you can do is empty space occupied unnecessarily. For this, delete the unwanted files permanently from Outlook inbox, other Outlook folders, and Deleted Items folder.

Solution 2

Use the method of compacting to reduce the size of Microsoft Outlook PST files.

Solution 3

Archive data from old PST files by creating a new Outlook PST file.

Solution 4

You can also, split PST files, which are large. Split it into some smaller segments to lessen the size of PST file.

Solution 5

It is possible that the error is due to a corrupted OST file. Therefore, it is recommended to recreate a .ost file. Follow these steps as mentioned below to perform this entire task:

  • First, close Outlook and go to Control Panel.
  • Now, go to the dialog box of Mail Setup that consists of the name of the current profile. Click on Show Profile, if you want to choose the different profile and choose the profile name.
  • Now, Click on Properties >> Mail >> E-mail tab >> Exchange account, and finally on Change button.
  • Unmark the checkbox of Use Cached Exchange Mode followed by a click on More Settings.
  • Then, go to Advanced tab >> Offline Folder File Settings >>Disable Offline Use.
  • As soon as you do that a dialog box will appear, click on Yes to confirm.
  • Now to proceed further, click Offline Folder File Settings>>OK.
  • Again a dialog box will appear press Yes.
  • Mark the box Use Cached Exchange Mode from Cached Exchange Mode Settings and click on OK and then on Next.
  • Finally, click on Finish option and then on Close.

Solution 6

In some cases, you can try built-in utilities such as Scanpst.exe to fight against the corruption in OST or PST files. However, SCANPST.EXE can only handle the minor corruption. Therefore, to deal with the high level of corruption, you can take the help of third-party utility.


Outlook has provided a rich interface for the users who are running businesses along with various other professional features. Nevertheless, it is not guaranteed that the files of Outlook cannot be corrupted. Therefore, considering the Outlook error code 0x8004060c issues, we have discussed some methods to repair both OST and PST files. Apart from some manual methods, users can go for a third party utility help and can get rid of this error.

Must Read: Outlook is Trying to Retrieve Data from the Microsoft Exchange Server