ernestbeevers wrote:

As a former user of Outlook Express, I was able to check in
File/Properties/General/Details to Message Source, to check on the address of
the sender of an email. This was sometimes important to know.

With the Outlook supplied with Microsoft Office Professional 2007, the above
functions seem not to be available - have I missed some obvious route?

If you want to see the headers, right-click on the e-mail item and choose
Options.