대량의 메일발송으로 서버의 로드가 많이 올라가네요

대량이 메일 이 발송되어 서비스에 많은 지장을 주고 있습니다.

/var/spool/mqueue 및 /var/spool/clientmqueue 에 많이 쌓이고, 지우고 지워도 끝없이 들어오네요

아마 로컬의 웹으로 보내는것 같기도 한테 어떤 프로그램이 실행되어 보내고 있는지도 모르겠구요.

어떤 스크립트가 실행되고 있는것 같지는 않습니다. 고수님들의 조언을 부탁합니다.

다음은 서버의 내용입니다.

[root@localhost root]# cat /etc/redhat-release
Red Hat Linux release 8.0 (Psyche)
[root@localhost  root]#

[root@localhost  root]# netstat -an
tcp        0      0 127.0.0.1:25            127.0.0.1:57792         TIME_WAIT  
tcp        0      0 127.0.0.1:25            127.0.0.1:57920         TIME_WAIT  
tcp        0      0 127.0.0.1:25            127.0.0.1:57856         TIME_WAIT  
tcp        0      0 127.0.0.1:25            127.0.0.1:57793         TIME_WAIT  
tcp        0      0 127.0.0.1:25            127.0.0.1:58177         ESTABLISHED
tcp        0      0 127.0.0.1:25            127.0.0.1:57857         TIME_WAIT  
tcp        0      0 127.0.0.1:25            127.0.0.1:58050         TIME_WAIT  
tcp        0      0 127.0.0.1:25            127.0.0.1:57986         TIME_WAIT  
tcp        0      0 127.0.0.1:25            127.0.0.1:57922         TIME_WAIT  
tcp        0      0 127.0.0.1:25            127.0.0.1:58114         ESTABLISHED
tcp        0      0 127.0.0.1:25            127.0.0.1:58051         TIME_WAIT  
tcp        0      0 127.0.0.1:25            127.0.0.1:57923         TIME_WAIT  
tcp        0      0 127.0.0.1:25            127.0.0.1:58179         ESTABLISHED
tcp        0      0 127.0.0.1:25            127.0.0.1:57796         TIME_WAIT  
tcp        0      0 127.0.0.1:25            127.0.0.1:57988         TIME_WAIT  
....
...
tcp        0      0 127.0.0.1:58173         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58163         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58160         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58161         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58166         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58167         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58165         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58155         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58153         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58159         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58157         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58146         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58144         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58148         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58149         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58138         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58136         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58142         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58140         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58130         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58128         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58134         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58132         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58126         127.0.0.1:25            ESTABLISHED
tcp        0      0 127.0.0.1:58114         127.0.0.1:25            ESTABLISHED

[root@localhost  clientmqueue]# pwd
/var/spool/clientmqueue
[root@localhost  clientmqueue]# ls
dfj7I1tP41002489  dfj7I2qZWV019858  qfj7I1tP42002501  qfj7I2qZXI019892
dfj7I1tP42002501  dfj7I2qZXI019892  qfj7I1tP6M002492  qfj7I2qZYC019872
dfj7I1tP6M002492  dfj7I2qZYC019872  qfj7I1tPLv002475  qfj7I2qZZT019860
dfj7I1tPLv002475  dfj7I2qZZT019860  qfj7I1tPTB002481  qfj7I2qZnn019887
dfj7I1tPTB002481  dfj7I2qZnn019887  qfj7I1tPlU002468  qfj7I2qZoP019857
dfj7I1tPlU002468  dfj7I2qZoP019857  qfj7I1tPqY002493  qfj7I2qZsH019870
dfj7I1tPqY002493  dfj7I2qZsH019870  qfj7I1tPsS002486  qfj7I2qZsp019859
dfj7I1tPsS002486  dfj7I2qZsp019859  qfj7I1tPtn002499  qfj7I2qZtU019874
dfj7I1tPtn002499  dfj7I2qZtU019874  qfj7I1tPv3002509  qfj7I2qZwP019885
dfj7I1tPv3002509  dfj7I2qZwP019885  qfj7I1tPvX002503  qfj7I2qbuK019926
dfj7I1tPvX002503  dfj7I2qbuK019926  qfj7I1tRCV002540  qfj7I2qbx2019923
dfj7I1tRCV002540  dfj7I2qbx2019923  qfj7I1tRHR002539  tfj7I2qP25019643
dfj7I1tRHR002539  qfj7I1oetI028641  qfj7I1tRI2002531  tfj7I2qSEd019743
...
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