FileLocator Pro 7.5 (or higher)
FileLocator Pro now exports emails as complete .msg files, including attachments. If your search results find text in an attachment you can export the parent email by using the new Bulk Copy feature and specifying Copy parent MSG file.
FileLocator Pro 7.2 (or lower)
You can export the text of a found email by either drag/drop or copy/paste the found email (as a text file) to a folder.