Automatic formating of message display

[Polp]

Hallo,
my would like to use automatic formating of message views. When he
define cindition for his "rule", he would like to show all our domain users
in his rule, so he would like to use rule like "when field by contains
ourdomain.com" . We have tested it and it seems thah this rules in field
send-by use only senders name (in exchange we dont see user's email, but
only his name)

my question is : how to build rule to apply to email with some string in
sender's email even sender is our exchange user?

hope I descrived it enough

thanks for any help

Polp