Unsure if it's the actual term for it, but I refer to header as the listing of the e-mails in a vertical order, which lists the e-mail name, date received, attachment, sender, etc..., where you double-click them (or single-click to open in preview-panel) to read.
OK, I see what you mean, now. However, I still don't see how clicking on a header can cause trouble. Doesn't doing so simply cause the message to display in the preview pane. How can this be potentially hazardous?I understand how attachments can be dodgy but this issue with the preview pane doesn't make sense to me. And, how can viewing the message in the preview pane be bad, but viewing the message in a separate window be ok?
I'm interested in this because I've always used OE, complete with preview pane, and have never had a problem.