Configuring a SMTP relay server
Hello! I am quite new to linux world.
I ran a Slackware server.
I'd like to set up, on it, a server that can act as relay but just for a finite set of email addresses. Plus.. I'd like it to be reached from the outside (not just from localhost).
I've no problems with firewall (everything is set up fine) so I just have to configure an SMTP selective relay server. I guess I can do it with sendmail... however it seems pretty hard (for me at least) to setup.
Can anyone help?
Thanks in advance!