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Outlook 2010 unable to send attachments: Know how to solve the issue

Microsoft outlook is really a great application for any general person who need to deal with several emails on everyday. It allow easy management of emails and related database with ease of accessing and editing. Microsoft has recently released upgraded outlook version 2010 with more advance features. This new outlook version is easy to operate for any general user with its simple interface. But outlook users are continue complaining about several trouble with outlook after upgrading to outlook 2010. One general problem is faced by the users while sending attachments in emails. Users have been complaining that outlook 2010 is unable to send attachments.

In a general scenario you may receive some set of error messages while sending attachments with any particular email message. One common error message is operation failed. This error message may appear on the screen with the following set of tags:

"Operation Failed. The messaging interfaces have returned an unknown error. If the problem persists, restart Outlook. Cannot resolve recipient."

In this situation, you cannot send attachments using outlook 2010. Most of the time outlook fails to perform attachments sending operation due to some restricted settings of in-configured anti-virus application. Sometimes outlook 2010 become unable to send attachments also due to large file size. You can solve the problem accordingly after finding out root cause behind the situation.

  • If you are not permitted to send attachments by administrator then contact with your system administrator and set permission to send attachments
  • If you have recently upgraded your anti-virus application then it can be possible that it restrict you from sending the attachments due to detection of virus or threats. Disable it temporarily and then try to send the attachments. Most probably it will solve your problem.
  • However, if above mentioned steps are unable to send the problem then verify that you are getting trouble only with that particular file or all email attachments. If problem is only in that file then resize the file and then send it. Sometimes, outlook doesn't support very large email attachments.

If still outlook 2010 is unable to send attachments then virus infection, corrupted PST files and improper installation may be possible reasons. You need to run scanpst.exe to fix the problem. If nothing works the uninstall outlook and then reinstall the application in proper way. It will surely solve the issue but it may results into loss of previous emails and related database. It is recommended to use professional scanpst.exe tool to repair corrupted PST files automatically. This third party tool is also capable to recover lost outlook files and data.

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Step 1
Install and launch Outlook PST Repair software and select the PST file to be repaired.


Step 2
Click 'Next' button to follow the on-screen instruction to finish the repairing.


Step 3
Once the scanning of corrupt PST file finishes Outlook PST Repair will display the previews of all recoverable components.

Step 4
Once the lost PST component is displayed after repairing and recovery, you can now go for the Licence Key to save the PST contents.


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