I ran a scan on my cpanel server with nessusd and its saying exim is a security hole:
results|com|mydomain.com|smtp (25/tcp)|11852|Security Hole|\nSynopsis :\n\nAn open SMTP relay is running on this port.\n\nDescription :\n\nThe remote SMTP server is insufficiently protected against relaying. \nThis means that it allows spammers to use your mail server to send \ntheir mails to the world, thus wasting your network bandwidth.\n\nSolution :\n\nReconfigure your SMTP server so that it cannot be used as a relay \nany more.\n\nRisk factor :\n\nHigh / CVSS Base Score : 7.8\n(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)\n\nPlugin output :\n\nNessus was able to relay mails by sending those sequences :\n\n MAIL FROM: <[email protected]>\n RCPT TO: <nobody%[email protected]>\n\n
How can I fix this?
TIA
results|com|mydomain.com|smtp (25/tcp)|11852|Security Hole|\nSynopsis :\n\nAn open SMTP relay is running on this port.\n\nDescription :\n\nThe remote SMTP server is insufficiently protected against relaying. \nThis means that it allows spammers to use your mail server to send \ntheir mails to the world, thus wasting your network bandwidth.\n\nSolution :\n\nReconfigure your SMTP server so that it cannot be used as a relay \nany more.\n\nRisk factor :\n\nHigh / CVSS Base Score : 7.8\n(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)\n\nPlugin output :\n\nNessus was able to relay mails by sending those sequences :\n\n MAIL FROM: <[email protected]>\n RCPT TO: <nobody%[email protected]>\n\n
How can I fix this?
TIA