Outlook Messaging Interface Unknown Error Repair

On various situations when Outlook PST file gets corrupted, you encounter error messages. One such error message – ‘The messaging interface has returned an unknown error’ is the latest error message you have encountered, and you have no idea how to fix it.

You might receive this error message while you try to check emails, create a new calendar item, delete emails, contacts, or a calendar item. This problem is usually caused by –

  • Any internal issues with Outlook messaging user interface
  • PST file corruption
  • Oversized PST file

If such an error message pops up, then the first thing to do is to restart Outlook. But this solution will work out if the error is due to messaging interface problems. If the issue is due to large PST file, then you can try splitting the large PST file into several small files. However, if the error is due to PST file corruption, then the problem is serious, and it requires immediate action to fix the issue.

Fix ‘The Messaging Interface has Returned an Unknown Error’ Outlook issue –

When you encounter this error message – ‘The messaging interface has returned an unknown error’, you can try using Inbox Repair tool to fix the issue. Create a new PST file, create a new Outlook Profile, install a new set of MAPI files, and reinstall Windows. This might work if the corruption is not serious. But if the PST file corruption is severe, then ScanPST tool will not come in handy. Under such a situation you need a reliable PST File Fixer. Hi5 Outlook PST File Repair software comes to your rescue to fix the corrupt PST file in a safe and easy way.

Steps to Repair Outlook Unknown Error Messaging Interface –

  • Download and install Hi5 Outlook PST File Repair software on your system
  • Launch the tool. On the main screen you will find 3 options among which you need to select one –
  • Open Default PST File – This option will select the default location of your PST File
  • Select PST File Manually – Choose this option if you know the location of the Outlook PST file
  • Find All PST Files – Select this option if you don’t know the location of the PST file path
  • In the next screen, select the required scanning option, and click on Repair button
  • Once the repair process is completed, you can preview the recovered items

Hi5 Outlook PST File Repair software not only helps to repair corrupted PST file, but it also recovers Outlook attributes like emails, contacts, notes, tasks, and so on. Moreover, since it is a read-only tool, it doesn’t alter the corrupt PST file throughout the repair process. Thus the original Outlook PST file is left intact. It safely repairs large sized PST file, encrypted PST file, freezing Outlook, inaccessible PST file, and other Outlook issues. It supports all Outlook versions, including Outlook 2016.

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