Hi April,
Thank you very much for your reply. Here is a screenshot of the first e-mail in the results list, which is empty (I have omitted the other ones for anonymity purposes). This message only appears if I select "Search in entire mailbox", but do not appear if I select "Current folder" even if this is "Inbox".
Image may be NSFW.
Clik here to view.
Thank you for your help,
BBth