Sendmail Mail Server is installed on my server. QMail Mail Server is not installed. Postfix Mail Server is not installed.
When i use this command:
tail -f /var/log/maillog
and Sendmail is stopped,
Here is what i see:
Jan 13 10:36:54 server sendmail[19180]: m0DIam73019180: to="=?UTF-8?B?TXIuVm9vcmhlZXM=?=" <
gates82@gmx.de>, ctladdr=nobody (99/99), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=31410, relay=[127.0.0.1] [127.x.x.x], dsn=4.0.0, stat=Deferred: Connection refused by [127.x.x.x]
...
...
...
...
...
+ the hacker can write/delete files on my server.
Please help!

Aiko
