Outlook Doesn't show attachment

Summary: There are some emails from a particular vendor, which contains  attachments. When it arrives in Outlook inbox, there is no paper clip icon, but from the size we can see there is something. If we use OWA to view the message we can see an attachment. If we forward to external web emails like hotmail, yahoo, the attachments are there.

 

In Microsoft word: A MIME-encoded message that includes an inline attachment arrives in Microsoft Exchange Server. You try to access the message from a Microsoft Office Outlook 2003/2007/2010 client. In this scenario, the attachment is hidden, and it is unavailable for download. If you use Microsoft Office Outlook Web Access to view the same message, the inline attachment is still hidden. However, the inline attachment is available for download in Outlook Web Access, and you can click the message and view it.

 

Resolutions:

 

Exchange Server 2010

1. Stop the Exchange Transport service.
2. Locate the EdgeTransport.exe.config file. This file is located in the following path: 
   <drive> :\Program Files\Microsoft\Exchange Server\Bin\
3. In the EdgeTransport.exe.config file, add the following entry between the <appSettings> element and the </appSettings> element:
   
   <add key="TreatInlineDispositionAsAttachment" value="true" />
4. Restart the Transport service.

Notes

• If the TreatInlineDispositionAsAttachment option does not exist or if the option is set to "false," the behavior is the same as the behavior that is mentioned in the "Symptoms" section.
• If the TreatInlineDispositionAsAttachment option is set to "true," the inline attachment that is not referenced is available for download.

Exchange Server 2007 SP2 or later

1. Make sure that Exchange Server 2007 Service Pack 2 or later is installed.
2. Run the following command:
   
   set-OrganizationConfig -ShowInlineAttachments:$true