Hello, we recently upgraded our exchange server 5.5 -> 2003 (not exactly upgrade - it was new installation). While we were using old exchange server 5.5 we were able to put custom recipients into exchange directory and when email was received with address of one of these recipients, it was displayed with its displayname in outlook. Using this feature we were for example able to recognize company which sent fax (faxnumber was resolved to display name). Now with Exchange 2003 we are not able to do this. Creating contacts in pulbic folder doesn't help, contacts in active directore doesn't work as well, it looks like resolution works only for local mailboxes. (which sometimes does more problems, ie. if you receive multiple email addresses to one mailbox and you wanna know to which address it was sent). So my question: Is there a way to resolve an address to some displayname if it's not local mailbox, just contact? We exactly need to resolve sender's address to some display name. Thank you, Honza Novak