I'm considering implementing Listserv on our NT 4.0 network and wonder if anyone had any experience using Listserv and Exchange 5.0? Are they even compatible? Will Listserv need to be on another NT box with the SMTP sniffer enabled, etc...? ~ Carrick ~ Carrick Mundell ~ Information Systems Technician Exponent Environmental Group - Bellevue, WA USA mailto:[log in to unmask] http://www.exponent.com PGP DH/DSS key available on public key servers