My WIN2000 server is not passing large attachments through my SOHO network. It is a NAT server which allows the DSL internet connection to be shared with WIN98 clients.(no DHCP or DNS on the W2K server). It is the ONLY server in SOHO LAN. Small notes with small attachments get passed along to the Outlook Express app on the client. The big ones get the "time-out communicating with POP3 server" message. Is there anything in NAT or the server that would limit the size or amount of mail data passed to a client ? Great thanks for ANY help !!!