Siag Pa,
Setelah saya rubah spam scanning nya menjadi 90kb dan juga restart server, masi 
saja ada yang pa: CFENGINE.EXE was not running.  It was restarted.

Wed 2014-12-17 10:49:40.236: Session 935223; child 0001
Wed 2014-12-17 10:49:40.236: Accepting POP3 connection from [192.0.0.218:1730] 
to [192.0.0.4:110]
Wed 2014-12-17 10:49:40.236: --> +OK mail.asmaraindo.co.id POP3 MDaemon 14.5.2 
ready <[email protected]>
Wed 2014-12-17 10:49:40.251: <-- AUTH 
Wed 2014-12-17 10:49:40.251: --> -ERR unknown POP3 command!
Wed 2014-12-17 10:49:40.251: <-- USER [email protected]
Wed 2014-12-17 10:49:40.251: --> +OK [email protected]... User ok
Wed 2014-12-17 10:49:40.251: <-- PASS ******
Wed 2014-12-17 10:49:40.251: --> +OK [email protected]'s mailbox has 0 
total messages (0 octets)
Wed 2014-12-17 10:49:40.251: <-- STAT
Wed 2014-12-17 10:49:40.251: --> +OK 0 0
Wed 2014-12-17 10:49:40.454: <-- QUIT
Wed 2014-12-17 10:49:40.454: --> +OK [email protected] asmaraindo.co.id 
POP3 Server signing off (mailbox empty)
Wed 2014-12-17 10:49:40.454: POP3 session complete (Bytes in/out: 60/343)
Wed 2014-12-17 10:49:40.454: ----------
Wed 2014-12-17 10:49:42.033: CFENGINE.EXE was not running.  It was restarted.

Berikut system.log:

START Event Log / MDaemon PRO v14.5.2, System log information
-------------------------------------------------------------------------------
Event Time/Date             Event Description
-------------------------------------------------------------------------------
Wed 2014-12-17 11:48:59.656: Building 'Everyone' mailing lists for all domains
Wed 2014-12-17 11:48:59.656: Unlocking all mailboxes and mail queues
Wed 2014-12-17 11:48:59.781: Installing all plugins
Wed 2014-12-17 11:49:02.671: ----------
Wed 2014-12-17 11:49:04.343: PCID: 00060E430D0E:b5d2d82b3f124732931db2ca35178783
Wed 2014-12-17 11:49:04.343: ----------
Wed 2014-12-17 11:49:04.375: **** ALERT **** At least one required postmaster 
alias is missing for a domain [EvRFC]
Wed 2014-12-17 11:49:04.375: **** ALERT **** At least one required abuse alias 
is missing for a domain [EvRFC]
Wed 2014-12-17 11:49:04.375: ----------
Wed 2014-12-17 11:49:04.375: AV engine source: SecurityPlus for MDaemon
Wed 2014-12-17 11:49:04.375: AV known viruses: 9934565
Wed 2014-12-17 11:49:04.375: AV last virus update: 12/16/2014
Wed 2014-12-17 11:49:04.375: ----------
Wed 2014-12-17 11:49:05.406: Using the following DNS servers...
Wed 2014-12-17 11:49:05.421: *  IP:  27.112.64.3  (Manually configured within 
MDaemon)
Wed 2014-12-17 11:49:05.421: *  IP:  27.112.64.9  (Manually configured within 
MDaemon)
Wed 2014-12-17 11:49:05.421: *  Total DNS servers in use: 2
Wed 2014-12-17 11:49:05.421: ----------
Wed 2014-12-17 11:49:05.421: Starting threads:
Wed 2014-12-17 11:49:05.421: *  Starting maint thread: 3824
Wed 2014-12-17 11:49:05.421: *  Starting active directory thread: 3828
Wed 2014-12-17 11:49:05.421: *  Starting mdspamd thread: 3832
Wed 2014-12-17 11:49:05.421: *  Starting spam filter updates thread: 3836
Wed 2014-12-17 11:49:05.421: *  Starting bayesian thread: 3840
Wed 2014-12-17 11:49:05.421: *  Starting disk watch thread: 3844
Wed 2014-12-17 11:49:05.421: *  Starting config backup thread: 3848
Wed 2014-12-17 11:49:05.421: *  Starting bes backup thread: 3860
Wed 2014-12-17 11:49:05.421: *  Starting semaphore thread: 3864
Wed 2014-12-17 11:49:05.421: *  Starting queue report thread: 3868
Wed 2014-12-17 11:49:05.421: *  Starting delivery (local) thread: 3876
Wed 2014-12-17 11:49:05.421: *  Starting delivery (inbound) thread: 3880
Wed 2014-12-17 11:49:05.421: *  Starting schedule manager thread: 3884
Wed 2014-12-17 11:49:05.421: *  Starting reminder thread: 3888
Wed 2014-12-17 11:49:05.421: ----------
Wed 2014-12-17 11:49:05.421: Queue states:
Wed 2014-12-17 11:49:05.421: *  Inbound queue ACTIVE: C:\MDaemon\Queues\Inbound\
Wed 2014-12-17 11:49:05.421: *  Remote queue ACTIVE: C:\MDaemon\Queues\Remote\
Wed 2014-12-17 11:49:05.421: *  Local queue ACTIVE: C:\MDaemon\Queues\Local\
Wed 2014-12-17 11:49:05.421: ----------
Wed 2014-12-17 11:49:05.421: Initializing socket layer...
Wed 2014-12-17 11:49:05.500: *  Starting socket window thread: 3900
Wed 2014-12-17 11:49:05.515: ----------
Wed 2014-12-17 11:49:05.515: Server startup: Wed, 17 Dec 2014 11:49:05 +0700 
[EvStartup]
Wed 2014-12-17 11:49:05.515: ----------
Wed 2014-12-17 11:49:07.421: AntiSpam daemon host: 127.0.0.1
Wed 2014-12-17 11:49:07.437: AntiSpam daemon port: 783
Wed 2014-12-17 11:49:07.437: ----------
Wed 2014-12-17 11:49:08.984: Attempt to logon and impersonate 'nas.admin' on 
domain qnap01 successful (thread id: 1804)
Wed 2014-12-17 11:49:08.984: ----------
Wed 2014-12-17 11:49:36.692: cfilter.sem semaphore file found and processed
Wed 2014-12-17 11:49:36.692: ----------
Wed 2014-12-17 12:11:06.426: CFENGINE.EXE was not running.  It was restarted.
Wed 2014-12-17 12:11:06.426: ----------
Wed 2014-12-17 12:14:06.333: CFENGINE.EXE was not running.  It was restarted.
Wed 2014-12-17 12:14:06.333: ----------
Wed 2014-12-17 12:16:06.364: CFENGINE.EXE was not running.  It was restarted.
Wed 2014-12-17 12:16:06.380: ----------

Apalagi yang harus di cek ya pa?

Sandi


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