Alguien esta enviando spam desde mi zimbra, estoy en lista negra y veo la cantidad de mensajes enviados muy alta.

UID PID PPID C STIME TTY TIME CMD

Postfix 18635 9291 0 12:¿25? 00:00:00 smtp -t unix -u
postfix 18637 9291 0 12:¿25? 00:00:00 smtp -t unix -u
postfix 18639 9291 0 12:¿25? 00:00:00 smtp -t unix -u
postfix 18640 9291 0 12:¿25? 00:00:00 smtp -t unix -u
postfix 18643 9291 0 12:¿25? 00:00:00 smtp -t unix -u
postfix 18644 9291 0 12:¿25? 00:00:00 smtp -t unix -u
postfix 18645 9291 0 12:¿25? 00:00:00 smtp -t unix -u
postfix 18646 9291 0 12:¿25? 00:00:00 smtp -t unix -u
postfix 18647 9291 0 12:¿25? 00:00:00 smtp -t unix -u
postfix 18649 9291 0 12:¿25? 00:00:00 smtp -t unix -u
postfix 18653 9291 0 12:¿25? 00:00:00 smtp -t unix -u
postfix 18656 9291 0 12:¿25? 00:00:00 bounce -z -n defer -t unix -u
postfix 18658 9291 0 12:¿25? 00:00:00 bounce -z -n defer -t unix -u
postfix 18661 9291 0 12:¿25? 00:00:00 bounce -z -n defer -t unix -u
postfix 19257 9291 0 12:¿00? 00:00:00 smtp -t unix -u
postfix 19260 9291 0 12:¿00? 00:00:00 smtp -t unix -u
postfix 21144 9291 0 12:¿05? 00:00:00 smtp -t unix -u
postfix 21168 9291 0 12:¿05? 00:00:00 smtp -t unix -u
postfix 21173 9291 0 12:¿05? 00:00:00 smtp -t unix -u
postfix 21174 9291 0 12:¿05? 00:00:00 smtp -t unix -u
postfix 22039 9291 0 12:¿35? 00:00:00 bounce -z -n defer -t unix -u
postfix 22041 9291 0 12:¿35? 00:00:00 bounce -z -n defer -t unix -u
postfix 22042 9291 0 12:¿35? 00:00:00 bounce -z -n defer -t unix -u
postfix 23256 9291 0 12:¿10? 00:00:00 smtp -t unix -u
postfix 23260 9291 0 12:¿10? 00:00:00 smtp -t unix -u
postfix 23797 9291 0 12:¿35? 00:00:00 cleanup -z -t unix -u
postfix 24161 9291 0 09:¿58? 00:00:05 smtpd -n smtp -t inet -u -o stress= -o content_filter=scan:[127.0.0.1]:10029
postfix 24162 9291 0 09:58? 00:00:31 proxymap -t unix -u
postfix 24176 9291 0 09:¿58? 00:00:11 trivial-rewrite -n rewrite -t unix -u
postfix 24411 9291 0 12:¿13? 00:00:00 pickup -l -t fifo -¿u
Postfix 27091 9291 0 2016? 00:14:29 qmgr -l -t fifo -u
postfix 27117 9291 0 12:¿36? 00:00:00 smtpd -n smtp -t inet -u -o stress= -o content_filter=scan:[127.0.0.1]:10029
postfix 27255 9291 0 12:36? 00:00:00 cleanup -z -t unix -u
postfix 27272 9291 0 12:¿36? 00:00:00 error -t unix -¿u
Zimbra 27275 1 0 2016? 00:36:36 /opt/zimbra/cyrus-sasl/sbin/saslauthd -r -a zimbra
zimbra 27276 27275 0 2016? 00:36:23 /opt/zimbra/cyrus-sasl/sbin/saslauthd -r -a zimbra
zimbra 27277 27275 0 2016? 00:36:38 /opt/zimbra/cyrus-sasl/sbin/saslauthd -r -a zimbra
zimbra 27278 27275 0 2016? 00:36:46 /opt/zimbra/cyrus-sasl/sbin/saslauthd -r -a zimbra
zimbra 27279 27275 0 2016? 00:36:27 /opt/zimbra/cyrus-sasl/sbin/saslauthd -r -a zimbra
zimbra 27470 1 0 2016? 00:00:00 /opt/zimbra/opendkim/sbin/opendkim -x /opt/zimbra/conf/opendkim.conf -u zimbra
zimbra 27471 27470 0 2016? 00:05:44 /opt/zimbra/opendkim/sbin/opendkim -x /opt/zimbra/conf/opendkim.conf -u zimbra
postfix 27476 9291 0 2016? 00:00:34 tlsmgr -l -t unix -u
postfix 28351 9291 0 12:¿26? 00:00:04 proxymap -t unix -u
postfix 28685 9291 0 12:¿37? 00:00:00 smtpd -n smtp -t inet -u -o stress= -o content_filter=scan:[127.0.0.1]:10029
postfix 28686 9291 0 12:37? 00:00:00 smtpd -n smtp -t inet -u -o stress= -o content_filter=scan:[127.0.0.1]:10029
postfix 28687 9291 0 12:37? 00:00:00 cleanup -z -t unix -u
postfix 28688 9291 0 12:¿37? 00:00:00 smtp -n scan -t unix -u -o smtp_send_xforward_command=yes -o disable_mime_output_conversio
postfix 28690 9291 0 12:37? 00:00:00 smtpd -n [127.0.0.1]:10029 -t inet -u -o smtpd_milters=inet:localhost:8465 -o smtpd_sender
postfix 28692 9291 0 12:37? 00:00:00 cleanup -z -t unix -u
postfix 29007 9291 0 12:¿15? 00:00:00 smtp -t unix -u