Outlook 2007 is considered as a very smooth and secured email management application but still there are certain issues and errors that you may need to face every now and then which ultimately result in inaccessibility of Outlook items. Outlook message interface unknown error is one such error that you may notice while accessing the mail inbox, add/delete contacts, notes, calenders or even the daily tasks. It is very important to fix this lethal error message as early as possible as it could lead to total inaccessibility of your Outlook 2007 and corrupts the Outlook pst file more further.
The ground reasons for the rise of this error message is corrupted or damaged pst file. However, the same case can also be noticed while using rtf format for forwarding emails containing attachments, default setting has been made for pst file delivery but you are using OST file, alteration made in the message after it is saved in drafts, using save option for sending message and so on. In all these cases, you could face multiple interface errors such as
'The messaging interface has returned an unknown error. If the problem persist, restart Outlook.' or 'Outlook 2007- Can't empty Deleted Items- Messaging Interface Unknown Error.' and so on.
What ever may be the reason behind this lethal error, you can can easily fix it by applying a proper setting for Outlook mailing procedure. Further, you can download and run Hotfix application provided by Microsoft for solving similar kinds of Outlook issues. If you notice that it is not working to fix Outlook message interface unknown error then it is clear indication that your Outlook pst file is severely corrupted. In such case, you need to use a powerful pst repair tool having effective scanning algorithm and programming logics to fix all kind of corruption and damage in Pst file. Once the pst file becomes intact and you outlook mailing procedure is correct, you will not face such issue in future.
It's really difficult to get back Outlook data after a system crash. But I easily get back the entire lost data even after my system crash with the help of Outlook PST Repair software.
Thank you again for the great help! Allen 'Oahu'