请各位指点

Feb 16 00:45:43 mail postfix/anvil[30659]: statistics: max connection rate 1/60s for (smtp:208.20.20.8) at Feb 16 00:37:12
Feb 16 00:45:43 mail postfix/anvil[30659]: statistics: max connection count 1 for (smtp:208.20.20.8) at Feb 16 00:37:12
Feb 16 00:45:43 mail postfix/anvil[30659]: statistics: max cache size 1 at Feb 16 00:37:12
Feb 16 00:46:04 mail postfix/pickup[30629]: 008B336A82A3: uid=0 from=<root>
Feb 16 00:46:04 mail postfix/cleanup[30868]: 008B336A82A3: message-id=<20120216084604.008B336A82A3@mail.3263.com>
Feb 16 00:46:04 mail postfix/qmgr[9813]: 008B336A82A3: from=<root@mail.3263.com>, size=689, nrcpt=1 (queue active)
Feb 16 00:46:04 mail postfix/cleanup[30868]: 0359B36A8266: message-id=<20120216084604.008B336A82A3@mail.3263.com>
Feb 16 00:46:04 mail postfix/local[28971]: 008B336A82A3: to=<root@mail.3263.com>, relay=local, delay=1.3, delays=1.3/0/0/0, dsn=2.0.0, status=sent (forwarded as 0359B36A8266)
Feb 16 00:46:04 mail postfix/qmgr[9813]: 0359B36A8266: from=<root@mail.3263.com>, size=826, nrcpt=1 (queue active)
Feb 16 00:46:04 mail postfix/qmgr[9813]: 008B336A82A3: removed
Feb 16 00:46:04 mail postfix/pipe[31183]: 0359B36A8266: to=<www@3263.com>, relay=dovecot, delay=0.01, delays=0/0/0/0, dsn=5.1.1, status=bounced (user unknown)
Feb 16 00:46:04 mail postfix/cleanup[30868]: 053FE36A82A5: message-id=<20120216084604.053FE36A82A5@mail.3263.com>
Feb 16 00:46:04 mail postfix/bounce[29913]: 0359B36A8266: sender non-delivery notification: 053FE36A82A5
Feb 16 00:46:04 mail postfix/qmgr[9813]: 053FE36A82A5: from=<>, size=2517, nrcpt=1 (queue active)
Feb 16 00:46:04 mail postfix/qmgr[9813]: 0359B36A8266: removed
Feb 16 00:46:04 mail postfix/cleanup[30868]: 0603436A8266: message-id=<20120216084604.053FE36A82A5@mail.3263.com>
Feb 16 00:46:04 mail postfix/local[28910]: 053FE36A82A5: to=<root@mail.3263.com>, relay=local, delay=0, delays=0/0/0/0, dsn=2.0.0, status=sent (forwarded as 0603436A8266)
Feb 16 00:46:04 mail postfix/qmgr[9813]: 0603436A8266: from=<>, size=2654, nrcpt=1 (queue active)
Feb 16 00:46:04 mail postfix/qmgr[9813]: 053FE36A82A5: removed
Feb 16 00:46:04 mail postfix/pipe[31183]: 0603436A8266: to=<www@3263.com>, relay=dovecot, delay=0, delays=0/0/0/0, dsn=5.1.1, status=bounced (user unknown)
Feb 16 00:46:04 mail postfix/qmgr[9813]: 0603436A8266: removed
Feb 16 00:46:44 mail postfix/smtpd[31194]: connect from unknown[121.35.183.109]
Feb 16 00:46:44 mail postfix/smtpd[31197]: connect from unknown[121.35.183.109]
Feb 16 03:46:48 mail postfix/smtpd[31197]: NOQUEUE: reject: RCPT from unknown[121.35.183.109]: 550 5.1.1 <gm071@3263.com>: Recipient address rejected: User unknown in virtual mailbox table; from=<cgfjgjgjvcgdfb@126.com> to=<gm071@3263.com> proto=ESMTP helo=<126.com>
Feb 16 00:46:50 mail postfix/smtpd[31204]: connect from unknown[121.35.183.109]
Feb 16 03:46:51 mail postfix/smtpd[31197]: disconnect from unknown[121.35.183.109]
Feb 16 03:46:51 mail postfix/smtpd[31204]: NOQUEUE: reject: RCPT from unknown[121.35.183.109]: 550 5.1.1 <gm08@3263.com>: Recipient address rejected: User unknown in virtual mailbox table; from=<rtyrdudthfffxddh@126.com> to=<gm08@3263.com> proto=ESMTP helo=<126.com>
Feb 16 03:46:52 mail postfix/smtpd[31204]: disconnect from unknown[121.35.183.109]
Feb 16 00:47:04 mail postfix/pickup[30629]: 007F736A82A3: uid=0 from=<root>
Feb 16 00:47:04 mail postfix/cleanup[30868]: 007F736A82A3: message-id=<20120216084704.007F736A82A3@mail.3263.com>
Feb 16 00:47:04 mail postfix/qmgr[9813]: 007F736A82A3: from=<root@mail.3263.com>, size=690, nrcpt=1 (queue active)
Feb 16 00:47:04 mail postfix/cleanup[30868]: 01D1D36A8266: message-id=<20120216084704.007F736A82A3@mail.3263.com>
Feb 16 00:47:04 mail postfix/local[28971]: 007F736A82A3: to=<root@mail.3263.com>, relay=local, delay=0.51, delays=0.5/0/0/0, dsn=2.0.0, status=sent (forwarded as 01D1D36A8266)
Feb 16 00:47:04 mail postfix/qmgr[9813]: 01D1D36A8266: from=<root@mail.3263.com>, size=827, nrcpt=1 (queue active)
Feb 16 00:47:04 mail postfix/qmgr[9813]: 007F736A82A3: removed
Feb 16 00:47:04 mail postfix/pipe[31183]: 01D1D36A8266: to=<www@3263.com>, relay=dovecot, delay=0.01, delays=0/0/0/0, dsn=5.1.1, status=bounced (user unknown)
Feb 16 00:47:04 mail postfix/cleanup[30868]: 0345B36A82A5: message-id=<20120216084704.0345B36A82A5@mail.3263.com>
Feb 16 00:47:04 mail postfix/bounce[29913]: 01D1D36A8266: sender non-delivery notification: 0345B36A82A5
Feb 16 00:47:04 mail postfix/qmgr[9813]: 0345B36A82A5: from=<>, size=2518, nrcpt=1 (queue active)
Feb 16 00:47:04 mail postfix/qmgr[9813]: 01D1D36A8266: removed
Feb 16 00:47:04 mail postfix/cleanup[30868]: 03F1F36A8266: message-id=<20120216084704.0345B36A82A5@mail.3263.com>
Feb 16 00:47:04 mail postfix/local[28910]: 0345B36A82A5: to=<root@mail.3263.com>, relay=local, delay=0, delays=0/0/0/0, dsn=2.0.0, status=sent (forwarded as 03F1F36A8266)
Feb 16 00:47:04 mail postfix/qmgr[9813]: 03F1F36A8266: from=<>, size=2655, nrcpt=1 (queue active)
Feb 16 00:47:04 mail postfix/qmgr[9813]: 0345B36A82A5: removed
Feb 16 00:47:04 mail postfix/pipe[31183]: 03F1F36A8266: to=<www@3263.com>, relay=dovecot, delay=0, delays=0/0/0/0, dsn=5.1.1, status=bounced (user unknown)
Feb 16 00:47:04 mail postfix/qmgr[9813]: 03F1F36A8266: removed