newbie list-can't subscribe

Is the newbie list still active? The form doesn't work and I haven't recieved a reply from the list webmaster.

I need help with pf and smtpd.conf to deal with an ongoing attack on port 25 that is sending out emails.

I only want to receive incoming emails and only send emails from the server itself, either with scripts or while logged on with ssh. I've completely blocked port 25 and the submission ports. With 25 open, I can't even login and I have to use IPMI. First what can I do with just pf? I haven't found