ISPConfig + Perfect Setup Ubuntu 5.10 + Smtp SPAM problems
HI all guys,
i configured my server a month ago but im havin problems with spam, i just followed all the steps in perfect setup ubuntu 5.10, but anyone can send emails throught smtp without authentification.
For example i telnet to my server to port 25(i tried from an outside ip and it worked).
So when i look to my mail logs, im noticing that some people is using my server to send emails....
anyone could help me?
thks in advanced :-P