받는메일만 유독 안됩니다..OTL

받는 메일 때문에 문의 드립니다.

보내는 메일은 잘 되는데

받는메일이 안되는 군요

일단 설정된 파일을 보면

***access ***

localhost.localdomain           RELAY
localhost                       RELAY
127.0.0.1                       RELAY

***virtusertable ***

admin@domain.com  webmaster

*** local-host-names ***

domain.com

*** 텔넷 110번 해보면 ***
[root@www /]# telnet www.domain.com 110
Trying 111.1111.111.11...<=== (원래는 실제 아이피로 나옴)
Connected to www.domain.com (111.111.111.11).
Escape character is '^]'.
+OK ready
[root@www /]# telnet www.domain.com 110
Trying 111.111.111.11...
Connected to www.domain.com (111.111.111.11).
Escape character is '^]'.
+OK ready
quit
+OK Pop server at www.domain.com signing off.
Connection closed by foreign host.

*** 텔넷 25번 해보면 ***
[root@www /]# telnet www.domain.com  25
Trying 111.111.111.11...
Connected to www.domain.com  (111.111.111.11).
Escape character is '^]'.
220 www.domain.com ESMTP Sendmail 8.13.1/8.13.1; Tue, 28 Feb 2006 11:32:40 +0900
quit
221 2.0.0 www.domain.com  closing connection
Connection closed by foreign host.

이런상태 입니다

아웃룩에서 다른계정에서 이 계정으로 메일을 보내보면

To:cooper21/////////RFC-822/cooper21@ssap4
550 cooper21/////////RFC-822/cooper21@ssap4 .... OM.UX 1015 Can't find mailnode in the routing table. 이렇게 반송 되고요

log 파일을 보면

Feb 27 11:53:19 www sendmail[12077]: k1R2rJVv012077: from=<nobody@www.domain.com>, size=10489, class=0, nrcpts=1, msgid=<200602270253.k1R2rI2c012075@www.domain.com>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]
Feb 27 11:53:19 www sendmail[12078]: k1R2rJ01012078: from=<nobody@www.domain.com>, size=10489, class=0, nrcpts=1, msgid=<200602270253.k1R2rIM9012076@www.domain.com>, proto=ESMTP, daemon=MTA, relay=localhost.localdomain [127.0.0.1]
Feb 27 11:53:19 www sendmail[12075]: k1R2rI2c012075: to=cooper@lovessuny.com, ctladdr=nobody (99/99), delay=00:00:01, xdelay=00:00:00, mailer=relay, pri=40299, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (k1R2rJVv012077 Message accepted for delivery)
Feb 27 11:53:19 www sendmail[12076]: k1R2rIM9012076: to=nanigga7@yahoo.co.kr, ctladdr=nobody (99/99), delay=00:00:01, xdelay=00:00:00, mailer=relay, pri=40299, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (k1R2rJ01012078 Message accepted for delivery)
Feb 27 11:53:19 www sendmail[12080]: k1R2rJVv012077: to=<cooper@lovessuny.com>, ctladdr=<nobody@www.domain.com> (99/99), delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=130489, relay=lovessuny.com. [218.145.65.30], dsn=2.0.0, stat=Sent (ok 1141008995 qp 4170)

이렇습니다.

제가 어디를 어찌 손봐야 하는건지 고수님들의 고견 듣고풉니다 OTL..벌써 며칠짼지.