> Bukan kemungkinan tetapi kepastian masalahnya di firewall yang super
> sibuk/ paranoid.
> Kalau primary mx tidak sibuk maka sender host tidak akan mengubah
> pengiriman mail (reroute) ke MX backup.
> 
> >traffic nya kemungkinan besar
> >Pak kalau mau lihat traffic MX kami tinggi caranya bagaimana ya pak?
> 
> Lihat ke MRTG traffic report nya firewall,  khususnya ke port mail
> service (tcp/udp port 25, 587, 143 dll, sesuai dengan port yang aktif
> di MDaemon Anda).
> 
Pak Syafril,

Terima kasih atas informasinya, apakah perlu restart Firewall pak?
Dan berikut untuk log smtp in yang minggu kemarin yg masih bisa diterima oleh 
kami terhadap sender

Mon 2014-04-14 10:29:33: [117168] Session 117168; child 0008
Mon 2014-04-14 10:29:33: [117168] Accepting SMTP connection from 
[106.10.167.245:47389] to [165.108.159.10:25]
Mon 2014-04-14 10:29:33: [117168] --> 220-mail.jkt.itochu.co.id ESMTP MDaemon 
13.6.1; Mon, 14 Apr 2014 10:29:33 +0700
Mon 2014-04-14 10:29:33: [117168] --> 220 No public service mail PT. Itochu 
Indonesia
Mon 2014-04-14 10:29:33: [117168] <-- HELO smtp102.biz.mail.sg3.yahoo.com
Mon 2014-04-14 10:29:33: [117168] Performing IP lookup 
(smtp102.biz.mail.sg3.yahoo.com)
Mon 2014-04-14 10:29:33: [117168] *  D=smtp102.biz.mail.sg3.yahoo.com TTL=(30) 
A=[106.10.167.245]
Mon 2014-04-14 10:29:33: [117168] ---- End IP lookup results
Mon 2014-04-14 10:29:33: [117168] --> 250 mail.jkt.itochu.co.id Hello 
smtp102.biz.mail.sg3.yahoo.com, pleased to meet you
Mon 2014-04-14 10:29:34: [117168] <-- MAIL FROM:<[email protected]>
Mon 2014-04-14 10:29:34: [117168] Performing IP lookup (spunindo.com)
Mon 2014-04-14 10:29:34: [117168] *  D=spunindo.com TTL=(20) A=[98.139.135.198]
Mon 2014-04-14 10:29:35: [117168] *  P=010 S=002 D=spunindo.com TTL=(10) 
MX=[mx-biz.mail.am0.yahoodns.net] {63.250.193.253}
Mon 2014-04-14 10:29:35: [117168] *  P=090 S=000 D=spunindo.com TTL=(10) 
MX=[mxb.spunindo.com] {125.164.200.166}
Mon 2014-04-14 10:29:35: [117168] *  P=090 S=001 D=spunindo.com TTL=(10) 
MX=[spunindo.dnsalias.com]
Mon 2014-04-14 10:29:35: [117168] *  P=090 S=003 D=spunindo.com TTL=(10) 
MX=[mxa.spunindo.com] {125.164.200.23}
Mon 2014-04-14 10:29:35: [117168] *  D=spunindo.com TTL=(19) A=[98.139.135.198]
Mon 2014-04-14 10:29:35: [117168] ---- End IP lookup results
Mon 2014-04-14 10:29:35: [117168] Performing SPF lookup (spunindo.com / 
106.10.167.245)
Mon 2014-04-14 10:30:36: [117168] *  DNS: 60 second wait for DNS response 
exceeded (DNS Server: 118.88.20.195)
Mon 2014-04-14 10:30:37: [117168] *  Result: none; no SPF record in DNS
Mon 2014-04-14 10:30:37: [117168] ---- End SPF results
Mon 2014-04-14 10:30:37: [117168] --> 250 <[email protected]>, Sender ok
Mon 2014-04-14 10:30:37: [117168] <-- RCPT TO:<[email protected]>
Mon 2014-04-14 10:30:37: [117168] Performing DNS-BL lookup (106.10.167.245 - 
connecting IP)
Mon 2014-04-14 10:30:37: [117168] *  zen.spamhaus.org - passed
Mon 2014-04-14 10:30:37: [117168] ---- End DNS-BL results
Mon 2014-04-14 10:30:37: [117168] --> 250 <[email protected]>, Recipient ok
Mon 2014-04-14 10:30:37: [117168] <-- DATA
Mon 2014-04-14 10:30:37: [117168] Creating temp file (SMTP): 
s:\mdaemon\queues\temp\md50000067644.tmp
Mon 2014-04-14 10:30:37: [117168] --> 354 Enter mail, end with <CRLF>.<CRLF>
Mon 2014-04-14 10:30:37: [117168] Message size: 36298 bytes
Mon 2014-04-14 10:30:37: [117168] Performing DKIM lookup
Mon 2014-04-14 10:30:37: [117168] *  File: 
s:\mdaemon\queues\temp\md50000067644.tmp
Mon 2014-04-14 10:30:37: [117168] *  Message-ID: 
[email protected]
Mon 2014-04-14 10:30:37: [117168] * Signature (1): 
;v=1;a=rsa-sha256;c=relaxed/relaxed;d=yahoo.com;s=s1024;t=1397446189;b h=<not 
logged>;
Mon 2014-04-14 10:30:37: [117168] *    Verification result: [0] good
Mon 2014-04-14 10:30:37: [117168] *  Result: pass
Mon 2014-04-14 10:30:37: [117168] ---- End DKIM results
Mon 2014-04-14 10:30:37: [117168] Performing VBR certification (Domain: 
yahoo.com, Auth: DKIM)
Mon 2014-04-14 10:30:37: [117168] *  File: 
s:\mdaemon\queues\temp\md50000067644.tmp
Mon 2014-04-14 10:30:37: [117168] *  Message-ID: 
[email protected]
Mon 2014-04-14 10:30:37: [117168] *  Certifier (trusted): 
vbr.emailcertification.org ...
Mon 2014-04-14 10:30:37: [117168] *    Querying: 
yahoo.com._vouch.vbr.emailcertification.org ...
Mon 2014-04-14 10:31:38: [117168] *  DNS: 60 second wait for DNS response 
exceeded (DNS Server: 118.88.20.195)
Mon 2014-04-14 10:31:38: [117168] *    Certifier does not recognize that domain
Mon 2014-04-14 10:31:38: [117168] *  Certification result: message not certified
Mon 2014-04-14 10:31:38: [117168] ---- End VBR results
Mon 2014-04-14 10:31:38: [117168] Passing message through AntiVirus (Size: 
36298)...
Mon 2014-04-14 10:31:38: [117168] *  Message is clean (no viruses found)
Mon 2014-04-14 10:31:38: [117168] ---- End AntiVirus results
Mon 2014-04-14 10:31:38: [117168] Message creation successful: 
e:\mdaemon\queues\inbound\md50005153901.msg
Mon 2014-04-14 10:31:38: [117168] --> 250 Ok, message saved <Message-ID: 
<[email protected]>>
Mon 2014-04-14 10:31:38: [117168] <-- QUIT
Mon 2014-04-14 10:31:38: [117168] --> 221 See ya in cyberspace
Mon 2014-04-14 10:31:38: [117168] SMTP session successful (Bytes in/out: 
36419/445)

Regards
Benny


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