Pardon my inexperience with Exchange, but I would like to know if reinstalling Exchange 5.5 (and the subsequent service packs) will reset settings that may cause e-mail at my company to come to a grinding halt. Has anyone had experience reinstalling Exchange 5.5 on a Windows NT 4.0 server? The previous installation did not include the option of relaying, and because I would like to grab POP3 mail with Exchange, I need to install relaying and use routing. Thanks! -Tim McDonald Seattle Repertory Theatre