Different response on Server for Different Accounts.

I would like to be able to have my server respond differently, depending on the Account.   I have one account that I read, but another person in the company deals with responding.  I’d like those to show as Read on my computer, but not on the server, so he can know which emails he has not dealt with.  On all my other accounts, I’d like my server to reflect the fact that I’ve read the email.