A client just purchased and installed a Canon network copier/fax/scanner/document storage, etc, etc, etc; it does everything. One of the features is that a document can be scanned and sent via email directly from it. However, there is no provision for it to log into the domain. The only settings are for tcp/ip (including domain name) and smtp/pop3 account info. The emails aren't being sent. The helpful error message simply says "error". Canon's wonderful support people were only able to tell me that, no it can't log into a domain. They suggested that I enable relaying on the MS Exchange server. Rather than do that I'd like to give this thing permission to use port 25 to send its email. I've got an SBS 2000 server to work with; it's setup to firewall clients to access the Internet. With this configuration, is it possible in ISA to allow a particular IP address access to port 25? The goal is for this copier to be able to send email messages. Amy