Using colours in Outlook inbox to identify mails from certain users
I know in Outlook it's possible to highlight emails in the inbox from cerain people in different colours. However, there are only about 4 colours that are clear enough to actually be useful and I need more.
Does anyone know if it is possible to colour the background of the entry in the inbox rather than the text of it? This would be very helpul. Maybe there is an add-in available somewhere?
I am using Outlook (Office) 2007. Maybe this is a feature available in the 2010 version?