I am running a solaris sendmail on solaris 8. The mail relay works fine when I am inside my network. It works fine if I hardcode an ip address in the /etc/mail/relay-domains file. My problem is when a user wants to sendmail through the server from ouside the LAN. They can not connect to the server. I do not want to open it up to the entire outside world or an entire domain (i.e. if the client is at home and using earthlink, I don't want everyone that uses earthlink to be able to use the mailserver as there relay). How can I get this to work for specific users?? Please help!!