You may experience the following symptoms either in Microsoft Outlook in Online mode or in Outlook Web App (OWA) when the mailbox is located on a server on which Exchange 2010 Service Pack 2 RU6 or Exchange 2010 Service Pack 3 has been installed:
Note This issue does not occur if the message is sent by a user instead of by an application, or if the message has no attachments.
- You cannot soft delete messages that contain voice mail attachments.
- You cannot soft delete messages that have attachments (such as a PDF file) that are sent from a FAX server, a printer, or a scanner.
Note This issue does not occur if the message is sent by a user instead of by an application, or if the message has no attachments.