we have a web server which is also an email server. it uses squirrelmail and dovecot on a fedora core 4 platform. when i checked my yahoo mail yesterday, i saw a spam mail and when i checked where it came from, i saw the ip address of our server. any tips on what i have to do to stop this? our web/mail server has become a spammer.
pls help me. thanks.
let me re-phrase my problem. is there any way that i can do so i can stop my server from sending spam?
Did your mailserver open for relay? For sendmail change to port 587 is good idea..