We host several e-mail domains on our Exchange 2007 server. We want e-mail sent by Exchange to show the display name instead of the mailbox name. For instance, suppose we have three mailboxes, support_domaina, support_domainb and support_domainc. When we use "send as" and send e-mail as support_domaina the recipient sees the e-mail as coming from "support_domaina" instead of the display name, "Support". Short of making changes in Outlook is there a way in Exchange so the display name appears in the e-mail instead of the mailbox name?