Thanks. I'm using Exchange 2007 & Outlook 2007. Making rules isn't practical in this situation, because I'm looking at 5+ GB of e-mail, from hundredes of senders.
Basically, this is a forensic issue. A high level executive left without warning and I'm trying to make sense of his e-mails. Being able to sort by the sender's domain, ideally by using a new column, would help greatly.
If there were a way to make a rule that automatically put messages from a particular domain into subfolders, created when the search finds a new domain, that would work too.
I'm sure someone has develped a script for this, unfortunately I haven't been able to find one.