Hello, Serhii;
My apologies for taking so long to get back to this. We've been busier than expected working through actions involved with the operational separation of Veritas Technologies from Symantec Corporation.
I'm a bit confused as to what you mean when you talk about a SQL report and then refer to the DA preview pane. Is this report the actual view of the message in the preview pane? If it is, then we won't likely make any change as the preview pane attempts to reproduce the view you would receive if the selected message is opened in Outlook. Here's why:
Outlook will only display the contents of the author and recipient field contents using the Display Name associated with the author and recipient IF the Display Name is included with the address information. If the Display Name is not included, the SMTP address will be displayed.
When EV archives a message, it converts the message to HTML in order to index the message's metadata and contents. The DA preview uses the HTML rendering of the message in order to display an Outlook-like presentation and to allow for highlighting of search terms used to capture the message in a DA search.
The goal with the preview pane is to display the message as close as possible to what you would see if the message was open in Outlook.
In your screen shots, you displayed messages that have their xheader information open in a pane to the left of the preview pane. In both of those xheader information panes, you've noted the SMTP addresses of the author and recipient. Neither of those displays show the Display Name of the author or recipient. The Display Name is found elsewhere in those messages.
Now, when EV indexed those messages, it noted the Display Name in its field and the SMTP address in its field for the authors and recipients. EV's indexing operation then puts that information together in the 'menv' (message envelope) and / or 'sere' (sender / receiver) indexed metadata identifiers with the appropriate HTML anchors to identify the Display Name from the SMTP address. This is how we are able to search for items based on their Display Name and / or SMTP address. This is not, however, used in the HTML rendering of the messages in the preview pane as that rendering comes from the message, not from the indexed metadata.