sendmail에서 smtp..please 도와주세여

안녕하세여. 다름이 아니라 저희 메일서버가 smtp공개 서버로 이용되는거 같습니다.
우선 relay는 저희 로컬아이피만 사용할수 있게 설정해놓았고 저희도메인명으로만 메일을 보낼수 있도록 설정해놓은 상태입니다.
예를 들어 192.168.1 , test.co.kr ...이런식으로 c클라스 저희 로컬아이피대역에서만 메일을 보낼수 있고 test.co.kr이라는 도메인명을 사용하여 메일을 보낼수 있도록 설정한 상태였습니다..그런데 netstat -ta를 쳐보면 아래와 같이 나옵니다.

[root@mail /etc]# netstat -ta
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 *:smux *:* LISTEN
tcp 0 0 *:pop3 *:* LISTEN
tcp 0 0 mail:domain *:* LISTEN
tcp 0 0 localhost:domain *:* LISTEN
tcp 0 0 *:ssh *:* LISTEN
tcp 0 0 mail:smtp *:* LISTEN
tcp 0 0 mail:3304 yb.mx.aol.com:smtp TIME_WAIT
tcp 0 6 mail:3480 inmail.ev1.net:smtp ESTABLISHED
tcp 0 0 mail:smtp 202.39.76.251:2304 ESTABLISHED
tcp 0 0 mail:3320 mailhub.trxinc.com:smtp TIME_WAIT
tcp 0 0 mail:3253 mta-v13.level3.mai:smtp TIME_WAIT
tcp 0 1 mail:3393 64.225.154.175:smtp SYN_SENT
tcp 23 0 mail:2972 mail.uswest.net:smtp CLOSE_WAIT
tcp 0 0 mail:3060 dsl093-156-243.phx:smtp ESTABLISHED
tcp 0 0 mail:3335 mta-v12.level3.mai:smtp TIME_WAIT
tcp 0 0 mail:3329 mta-v12.level3.mai:smtp ESTABLISHED
tcp 0 0 mail:smtp 202.39.76.251:1393 ESTABLISHED
tcp 0 0 mail:3466 gateway.attbi.com:smtp TIME_WAIT
tcp 0 0 mail:3467 gateway.attbi.com:smtp TIME_WAIT
tcp 0 0 mail:3472 kcmx02.mgw.rr.com:smtp ESTABLISHED
tcp 0 0 mail:3333 yb.mx.aol.com:smtp TIME_WAIT
tcp 0 0 mail:3344 yb.mx.aol.com:smtp TIME_WAIT
tcp 0 0 mail:3417 mc5.law1.hotmail.c:smtp TIME_WAIT
tcp 0 0 mail:2540 dsl093-156-243.phx:smtp ESTABLISHED
tcp 0 0 mail:3319 madcap.apk.net:smtp TIME_WAIT
tcp 0 0 mail:3441 mail3.intrstar.net:smtp ESTABLISHED
tcp 0 0 mail:3397 gateway.attbi.com:smtp TIME_WAIT
tcp 0 0 mail:3046 mail.binc.net:smtp ESTABLISHED
tcp 0 0 mail:3440 gateway.attbi.com:smtp TIME_WAIT
tcp 0 0 mail:3443 gateway.attbi.com:smtp TIME_WAIT
tcp 0 0 mail:3360 mta-slb.epix.net:smtp ESTABLISHED
tcp 0 0 mail:3500 gateway.attbi.com:smtp TIME_WAIT
tcp 0 0 mail:3510 gateway.attbi.com:smtp ESTABLISHED
tcp 0 0 mail:3507 gateway.attbi.com:smtp ESTABLISHED
tcp 0 0 mail:3449 mta-v20.level3.mai:smtp TIME_WAIT
tcp 0 0 mail:3448 mta-v20.level3.mai:smtp TIME_WAIT
tcp 0 0 mail:3316 ns3.cswnet.com:smtp ESTABLISHED
tcp 0 0 mail:3429 mta-v20.level3.mai:smtp TIME_WAIT
tcp 0 0 mail:3495 imv11.mail.bellsou:smtp ESTABLISHED
tcp 0 0 mail:3426 xm.mx.aol.com:smtp TIME_WAIT
tcp 0 0 mail:smtp 202.164.160.226:5875 ESTABLISHED
tcp 0 0 mail:ssh :14526 ESTABLISHED
tcp 0 0 mail:smtp 202.39.76.251:4805 ESTABLISHED
tcp 0 30 mail:3511 217.32.164.150:smtp ESTABLISHED
tcp 0 1 mail:3349 dsl093-156-243.phx:smtp SYN_SENT
tcp 0 0 mail:3516 mail.cei.net:smtp ESTABLISHED
tcp 0 0 mail:smtp 202.164.160.226:6992 ESTABLISHED
tcp 0 1 mail:3380 dsl093-156-243.phx:smtp SYN_SENT
tcp 0 0 mail:3465 xc.mx.aol.com:smtp TIME_WAIT
tcp 0 0 mail:3494 mta-v14.level3.mai:smtp ESTABLISHED
tcp 0 0 mail:3485 hams.lvcm.com:smtp TIME_WAIT
tcp 0 1 mail:prsvp dsl093-156-243.phx:smtp SYN_SENT
tcp 0 1 mail:3477 dsl093-156-243.phx:smtp SYN_SENT
tcp 0 1 mail:3501 dsl093-156-243.phx:smtp SYN_SENT
tcp 0 0 mail:smtp 202.39.76.251:2454 ESTABLISHED
tcp 0 46 mail:smtp 202.39.76.251:1575 ESTABLISHED
tcp 0 0 mail:smtp 202.39.76.251:3335 ESTABLISHED
tcp 0 0 mail:3471 12.31.231.100:smtp TIME_WAIT
tcp 0 0 mail:3437 imail.amgreetings.:smtp TIME_WAIT
tcp 0 0 mail:3303 dsl093-156-243.phx:smtp ESTABLISHED
tcp 0 0 mail:3308 dsl093-156-243.phx:smtp ESTABLISHED
tcp 0 0 mail:3422 pcubed-mail.pcubed:smtp TIME_WAIT
tcp 0 1 mail:3532 mc9.bay6.hotmail.c:smtp SYN_SENT
tcp 0 0 mail:smtp 202.164.160.226:7182 ESTABLISHED
tcp 0 0 mail:3408 gateway.attbi.com:smtp TIME_WAIT
tcp 0 0 mail:3419 mail.triton.net:smtp TIME_WAIT
tcp 0 0 mail:ssh :3920 ESTABLISHED
tcp 0 0 mail:3470 gateway.attbi.com:smtp TIME_WAIT
tcp 0 0 mail:3497 gateway.attbi.com:smtp TIME_WAIT
tcp 0 0 mail:3498 gateway.attbi.com:smtp TIME_WAIT
tcp 0 0 mail:3517 mc6.law1.hotmail.c:smtp TIME_WAIT
tcp 0 0 mail:3489 gateway.attbi.com:smtp TIME_WAIT
tcp 0 7 mail:3016 mx.lightlink.com:smtp LAST_ACK
tcp 0 0 mail:smtp 202.164.160.226:61375 ESTABLISHED
tcp 0 0 mail:2527 ohmx02.mgw.rr.com:smtp ESTABLISHED
tcp 0 0 mail:3193 smtp01.aon.com:smtp TIME_WAIT
tcp 0 0 mail:3388 arnet.arn.net:smtp TIME_WAIT
tcp 0 0 mail:3436 mx-ha.web.de:smtp TIME_WAIT
tcp 0 0 mail:3284 64.75.1.245:smtp ESTABLISHED
tcp 0 54 mail:smtp 81.5.166.8:32142 ESTABLISHED
tcp 0 0 mail:3284 64.75.1.245:smtp ESTABLISHED
tcp 0 0 mail:smtp 81.5.166.8:32142 ESTABLISHED
tcp 0 0 mail:3416 gateway.attbi.com:smtp TIME_WAIT
tcp 0 1 mail:3559 xn.mx.aol.com:smtp SYN_SENT
tcp 0 0 mail:3442 gateway.attbi.com:smtp TIME_WAIT
tcp 0 0 mail:3527 b.mx.voyager.net:smtp TIME_WAIT
tcp 0 0 mail:3543 igate.highmark.com:smtp TIME_WAIT
tcp 0 0 mail:smtp 202.39.76.251:1083 ESTABLISHED
tcp 0 0 mail:smtp 202.164.160.226:60925 ESTABLISHED
tcp 0 0 mail:smtp 202.164.160.226:65485 ESTABLISHED
tcp 0 0 mail:3513 b.mx.voyager.net:smtp TIME_WAIT
tcp 0 0 mail:2956 smtp-gw-4.msn.com:smtp ESTABLISHED
tcp 0 7 mail:2599 mx.lax.untd.com:smtp LAST_ACK
tcp 0 0 mail:smtp 202.164.160.226:60749 ESTABLISHED
tcp 1 0 mail:3537 onemain-mx.earthli:smtp CLOSE_WAIT
tcp 0 0 mail:smtp 202.39.76.251:krb524 ESTABLISHED
tcp 0 0 mail:3515 mx03.nexgo.de:smtp TIME_WAIT
tcp 0 0 mail:smtp 202.39.76.251:4780 ESTABLISHED
tcp 0 0 mail:3473 mx03.nexgo.de:smtp TIME_WAIT
tcp 0 0 mail:3551 smtp.ntlworld.com:smtp TIME_WAIT
tcp 0 49 mail:smtp 202.39.76.251:2061 ESTABLISHED
tcp 0 0 mail:3432 smtp-gw-4.msn.com:smtp TIME_WAIT
tcp 0 0 mail:3430 smtp-gw-4.msn.com:smtp TIME_WAIT
tcp 0 0 mail:3447 smtp-gw-4.msn.com:smtp TIME_WAIT
tcp 0 0 mail:3444 smtp-gw-4.msn.com:smtp TIME_WAIT
tcp 0 0 mail:3418 smtp-gw-4.msn.com:smtp TIME_WAIT
tcp 0 0 mail:3499 smtp-gw-4.msn.com:smtp TIME_WAIT
tcp 0 0 mail:3555 mail.tisd.net:smtp TIME_WAIT
tcp 0 0 mail:smtp 202.39.76.251:2862 ESTABLISHED
tcp 122 0 mail:3595 smtp-gw-4.msn.com:smtp ESTABLISHED
tcp 0 31 mail:3589 smtp-gw-4.msn.com:smtp ESTABLISHED
tcp 0 28 mail:3591 smtp-gw-4.msn.com:smtp ESTABLISHED
tcp 0 27 mail:3590 smtp-gw-4.msn.com:smtp ESTABLISHED
tcp 0 0 mail:3561 nicanor.acu.edu:smtp ESTABLISHED
tcp 0 0 mail:3453 yc.mx.aol.com:smtp TIME_WAIT
tcp 0 0 mail:3577 mail.avon.net:smtp ESTABLISHED
tcp 0 0 mail:3545 mta.vmadmin.com:smtp TIME_WAIT
tcp 0 0 mail:3553 yc.mx.aol.com:smtp TIME_WAIT
tcp 0 0 mail:pop3 :1301 TIME_WAIT
tcp 0 0 mail:3468 mx05.nexgo.de:smtp TIME_WAIT
tcp 0 0 mail:smtp 202.164.160.226:3321 ESTABLISHED
tcp 0 0 mail:3475 mx02.nexgo.de:smtp TIME_WAIT
tcp 0 0 mail:3525 mx02.nexgo.de:smtp TIME_WAIT
tcp 0 0 mail:3522 mx02.nexgo.de:smtp TIME_WAIT
tcp 0 0 mail:3523 mx02.nexgo.de:smtp TIME_WAIT

그리고 /var/log/maillog.1의 내용을 보면 아래와같습니다.
Feb 16 04:02:01 mail sendmail[3854]: h1FJ1vN03849: to=<lynne_texas@prodigy.net>, delay=00:00:03, xdelay=00:00:02, mailer=esmtp, pri=
Broadcast message from root (pts/0) Tue Feb 25 09:37:05 2003...Sent (h1FJ9LNC1599618 Message accepted for delivery)
Feb 16 04:02:01 mail sendmail[3852]: h1FJ1vN03846: to=<lynne@abundance86.fsnet.co.uk>, delay=00:00:04, xdelay=00:00:03, mailer=esmtp
The system is going down for reboot NOW !!5.92.195.155], dsn=2.0.0, stat=Sent (OK id=18k7gf-00035W-00)
Feb 16 04:02:02 mail sendmail[3861]: h1FJ20N03861: to=<AlfredrL52342@bigfoot.com>, delay=00:00:02, xdelay=00:00:02, mailer=esmtp, pr
i=31623, relay=mail.bigfoot.com. [64.15.239.131], dsn=5.1.1, stat=User unknown
Feb 16 04:02:02 mail sendmail[3861]: h1FJ20N03861: h1FJ20O03861: return to sender: User unknown
Feb 16 04:02:02 mail sendmail[3843]: h1FJ1uN03843: from=<makemoneynow@cash.com>, size=730, class=0, nrcpts=1, msgid=<200302151901.h1
FJ1uN03843@dongdeuk.co.kr>, proto=ESMTP, daemon=MTA, mech=LOGIN, relay=www.hepha.org.tw [210.58.98.12] (may be forged)
Feb 16 04:02:02 mail sendmail[3861]: h1FJ20O03861: to=root, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=31723, dsn=2.0.0, sta
t=Sent
Feb 16 04:02:03 mail sendmail[3837]: h1FJ1tN03837: from=<makemoneynow@cash.com>, size=732, class=0, nrcpts=1, msgid=<200302151901.h1
FJ1tN03837@dongdeuk.co.kr>, proto=ESMTP, daemon=MTA, mech=LOGIN, relay=www.hepha.org.tw [210.58.98.12] (may be forged)
Feb 16 04:02:04 mail sendmail[3918]: h1FJ1uN03843: to=<lmrc6750665@yahoo.com>, delay=00:00:07, xdelay=00:00:02, mailer=esmtp, pri=30
730, relay=mx2.mail.yahoo.com. [64.156.215.6], dsn=5.0.0, stat=Service unavailable
Feb 16 04:02:04 mail sendmail[3918]: h1FJ1uN03843: h1FJ24N03918: DSN: Service unavailable
Feb 16 04:02:04 mail sendmail[3850]: h1FJ1vN03850: from=<makemoneynow@cash.com>, size=730, class=0, nrcpts=1, msgid=<200302151901.h1
FJ1vN03850@dongdeuk.co.kr>, proto=ESMTP, daemon=MTA, mech=LOGIN, relay=www.hepha.org.tw [210.58.98.12] (may be forged)
Feb 16 04:02:05 mail sendmail[3918]: h1FJ24N03918: to=<makemoneynow@cash.com>, delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=30
830, relay=mail.cash.com. [208.236.10.71], dsn=5.1.1, stat=User unknown
Feb 16 04:02:05 mail sendmail[3921]: h1FJ1tN03837: to=<loadercat2002@yahoo.com>, delay=00:00:09, xdelay=00:00:01, mailer=esmtp, pri=
30732, relay=mx1.mail.yahoo.com. [64.157.4.82], dsn=2.0.0, stat=Sent (ok dirdel)
Feb 16 04:02:06 mail sendmail[3918]: h1FJ24N03918: h1FJ24O03918: return to sender: User unknown
Feb 16 04:02:07 mail sendmail[3923]: h1FJ1vN03850: to=<locoanestetic@aol.com>, delay=00:00:08, xdelay=00:00:03, mailer=esmtp, pri=30
730, relay=mailin-03.mx.aol.com. [64.12.137.152], dsn=2.0.0, stat=Sent (OK)
Feb 16 04:02:07 mail sendmail[3903]: h1FJ22N03903: from=<BettyrL521@excite.com>, size=1515, class=0, nrcpts=1, msgid=<200302151902.h
1FJ22N03903@dongdeuk.co.kr>, proto=ESMTP, daemon=MTA, mech=LOGIN, relay=dsl-200-78-97-164.prodigy.net.mx [200.78.97.164]
Feb 16 04:02:07 mail sendmail[3918]: h1FJ24O03918: to=root, delay=00:00:01, xdelay=00:00:01, mailer=local, pri=30930, dsn=2.0.0, sta
t=Sent
Feb 16 04:02:09 mail sendmail[3824]: h1FJ1kN03800: to=<103032.3702@compuserve.com>, delay=00:00:22, xdelay=00:00:18, mailer=esmtp, p
ri=31532, relay=mx2.compuserve.com. [149.174.40.8], dsn=2.0.0, stat=Sent (h1FJ9Twa002436 Message accepted for delivery)
Feb 16 04:02:12 mail sendmail[3919]: h1FJ24N03919: from=<makemoneynow@cash.com>, size=728, class=0, nrcpts=1, msgid=<200302151902.h1
FJ24N03919@dongdeuk.co.kr>, proto=ESMTP, daemon=MTA, mech=LOGIN, relay=www.hepha.org.tw [210.58.98.12] (may be forged)
Feb 16 04:02:12 mail sendmail[3857]: h1FJ1xN03857: from=<createabundance@excite.com>, size=2505, class=0, nrcpts=1, msgid=<200302151
901.h1FJ1xN03857@dongdeuk.co.kr>, proto=ESMTP, daemon=MTA, mech=LOGIN, relay=[208.177.179.114]
Feb 16 04:02:12 mail sendmail[3855]: h1FJ1xN03855: from=<createabundance@excite.com>, size=2499, class=0, nrcpts=1, msgid=<200302151
902.h1FJ1xN03855@dongdeuk.co.kr>, proto=ESMTP, daemon=MTA, mech=LOGIN, relay=[208.177.179.114]
Feb 16 04:02:12 mail sendmail[3924]: h1FJ25N03924: from=<makemoneynow@cash.com>, size=726, class=0, nrcpts=1, msgid=<200302151902.h1
FJ25N03924@dongdeuk.co.kr>, proto=ESMTP, daemon=MTA, mech=LOGIN, relay=www.hepha.org.tw [210.58.98.12] (may be forged)
Feb 16 04:02:12 mail sendmail[3925]: h1FJ26N03925: from=<makemoneynow@cash.com>, size=731, class=0, nrcpts=1, msgid=<200302151902.h1
FJ26N03925@dongdeuk.co.kr>, proto=ESMTP, daemon=MTA, mech=LOGIN, relay=www.hepha.org.tw [210.58.98.12] (may be forged)
Feb 16 04:02:13 mail sendmail[3955]: h1FJ1xN03857: to=<lynnharris@zwallet.com>, delay=00:00:14, xdelay=00:00:01, mailer=esmtp, pri=3
2505, relay=mx1.zwallet.com. [216.66.64.29], dsn=5.1.1, stat=User unknown
Feb 16 04:02:14 mail sendmail[3951]: h1FJ24N03919: to=<longb@ptdprolog.net>, delay=00:00:08, xdelay=00:00:02, mailer=esmtp, pri=3072
8, relay=smtpin.ptd.net. [207.44.97.35], dsn=5.1.3, stat=User unknown
Feb 16 04:02:14 mail sendmail[3955]: h1FJ1xN03857: h1FJ2EN03955: DSN: User unknown
Feb 16 04:02:14 mail sendmail[3951]: h1FJ24N03919: h1FJ2EN03951: DSN: User unknown

설정은 제대로 해놓은거 같은데 이렇게 많은 곳에서 저희 smtp를 이용할려고 하는거 같습니다. 시간이 지나면 지날수록 더 많이 붙고 있습니다..현재는 너무 많이 붙으면 메일자체를 보낼수가 없어서 재부팅하고 있는 실정입니다....고수님의 답변 부탁드립니다.please~~!!