Dear netizens sorry to trouble you. My server is just overloaded with too much spams.
When I view the output of netstat -ln, there are over 400 ip addresses connecting to my postfix server actively. In our mail.log, the connections are from these ip addresses that had nothing to do with our company. Would greatly appreciate if if someone can help me out... I am using an old Freebsd 4.9 running postfix. Sincerely, Jessica