Outlook 2013 (as well as earlier versions) has a quick reading pane that shows a brief preview of a message. It includes the sender name, first N lines from the message, and sent date (by default).
What controls the string that appears in the Sender portion. In case there is doubt as to what I mean by Sender portion, it's within the box highlighted in red in this screenshot:.
I have done a lot of experimentation, and it appears to not come from any of the message headers themselves (I have tried every combination of
Sender headers). I should note that the Sender address does appear correctly on the right side of the reading panel, which shows the full message (under the uppermost blacked out solid box in the screenshot). There appears to be some metadata in the PST file itself that includes this Sender name. Can anyone point me to a reference, or otherwise help me ensure this field is populated correctly in a generated PST file?