I am running sendmail 8.9.3 on Linux Mandrake 5.3. I want to secure my mail server so that anyone NOT DIALED into my ISP cannot USE my SMTP server for sending mail.. basically wanna stop spamming.. can anyone please suggest anything for me? Thanks, Tom -- To unsubscribe, send email to majordomo@silug.org with "unsubscribe silug-discuss" in the body.