Doug,

SpamFilter is designed to handle incoming emails only. Relaying to domains not listed in your "local domains" is not allowed. If you need to use SpamFilter as an "outgoing smtp server" to relay emails to the internet is to add the client's IP address(es) in an IP whitelist (whitelisting a domain won't work, you must use IPs since they cannot be faked by spammers...)

Roberto F.

LogSat Software