Selamat Pagi Pa,
Minta wejangannya soal trouble berikut (log terlampir), dimana pagi ini ada 
2 email yg dikirim ke domain yang sama (epson.co.id). e-mail 1 bisa diterima 
oleh server tujuan tapi email 2 tidak bisa dgn error "Name server reports 
domain name unknown".
Kira-kira hal apa yg mesti saya periksa untuk mengetahui problemnya.
Terima kasih sebelumnya,
Regards,
Veri
LOG E-Mail Yg Sampai
---------------------------
Mon 2013-09-23 08:40:55: [206326] Session 206326; child 0001
Mon 2013-09-23 08:40:55: [206326] Parsing message 
<d:\mdaemon\remoteq\pd35000036430.msg>
Mon 2013-09-23 08:40:55: [206326] *  From: [email protected]
Mon 2013-09-23 08:40:55: [206326] *  To: [email protected]
Mon 2013-09-23 08:40:55: [206326] *  Subject: ?????
Mon 2013-09-23 08:40:55: [206326] *  Size (bytes): 5725
Mon 2013-09-23 08:40:55: [206326] *  Message-ID: 
<[email protected]>
Mon 2013-09-23 08:40:55: [206326] Attempting SMTP connection to [epson.co.id]
Mon 2013-09-23 08:40:55: [206326] Resolving MX records for [epson.co.id] (DNS 
Server: 202.145.0.1)...
Mon 2013-09-23 08:40:55: [206326] *  P=010 S=001 D=epson.co.id TTL=(3) 
MX=[mx0.epson.co.jp]
Mon 2013-09-23 08:40:55: [206326] *  P=020 S=000 D=epson.co.id TTL=(3) 
MX=[mx1.epson.co.jp]
Mon 2013-09-23 08:40:55: [206326] Attempting SMTP connection to 
[mx0.epson.co.jp:25]
Mon 2013-09-23 08:40:55: [206326] Resolving A record for [mx0.epson.co.jp] (DNS 
Server: 202.145.0.1)...
Mon 2013-09-23 08:40:55: [206326] *  D=mx0.epson.co.jp TTL=(29) 
A=[203.179.21.129]
Mon 2013-09-23 08:40:55: [206326] Attempting SMTP connection to 
[203.179.21.129:25]
Mon 2013-09-23 08:40:56: [206326] Waiting for socket connection...
Mon 2013-09-23 08:40:56: [206326] *  Connection established (192.168.0.4:1202 
-> 203.179.21.129:25)
Mon 2013-09-23 08:40:56: [206326] Waiting for protocol to start...
Mon 2013-09-23 08:40:56: [206326] <-- 220 mx0.epson.co.jp ESMTP Sendmail 
8.14.5/3.7W-11112815; Mon, 23 Sep 2013 10:40:56 +0900 (JST)
Mon 2013-09-23 08:40:56: [206326] --> EHLO office.ysi.yamani-spring.com
Mon 2013-09-23 08:40:56: [206326] <-- 250-mx0.epson.co.jp Hello 
office.ysi.yamani-spring.com [202.145.5.186], pleased to meet you
Mon 2013-09-23 08:40:57: [206326] <-- 250-ENHANCEDSTATUSCODES
Mon 2013-09-23 08:40:57: [206326] <-- 250-PIPELINING
Mon 2013-09-23 08:40:57: [206326] <-- 250-8BITMIME
Mon 2013-09-23 08:40:57: [206326] <-- 250-SIZE 20480000
Mon 2013-09-23 08:40:57: [206326] <-- 250-ETRN
Mon 2013-09-23 08:40:57: [206326] <-- 250-STARTTLS
Mon 2013-09-23 08:40:57: [206326] <-- 250-DELIVERBY
Mon 2013-09-23 08:40:57: [206326] <-- 250 HELP
Mon 2013-09-23 08:40:57: [206326] --> STARTTLS
Mon 2013-09-23 08:40:57: [206326] <-- 220 2.0.0 Ready to start TLS
Mon 2013-09-23 08:40:57: [206326] SSL negotiation successful (TLS 1.0, 1024 bit 
key exchange, 128 bit RC4 encryption)
Mon 2013-09-23 08:40:57: [206326] --> EHLO office.ysi.yamani-spring.com
Mon 2013-09-23 08:40:57: [206326] <-- 250-mx0.epson.co.jp Hello 
office.ysi.yamani-spring.com [202.145.5.186], pleased to meet you
Mon 2013-09-23 08:40:57: [206326] <-- 250-ENHANCEDSTATUSCODES
Mon 2013-09-23 08:40:57: [206326] <-- 250-PIPELINING
Mon 2013-09-23 08:40:57: [206326] <-- 250-8BITMIME
Mon 2013-09-23 08:40:57: [206326] <-- 250-SIZE 20480000
Mon 2013-09-23 08:40:57: [206326] <-- 250-ETRN
Mon 2013-09-23 08:40:57: [206326] <-- 250-DELIVERBY
Mon 2013-09-23 08:40:57: [206326] <-- 250 HELP
Mon 2013-09-23 08:40:57: [206326] --> MAIL From:<[email protected]> 
SIZE=5725
Mon 2013-09-23 08:40:57: [206326] <-- 250 2.1.0 
<[email protected]>... Sender ok
Mon 2013-09-23 08:40:57: [206326] --> RCPT To:<[email protected]>
Mon 2013-09-23 08:40:58: [206326] <-- 250 2.1.5 <[email protected]>... 
Recipient ok
Mon 2013-09-23 08:40:58: [206326] --> DATA
Mon 2013-09-23 08:40:58: [206326] <-- 354 Enter mail, end with "." on a line by 
itself
Mon 2013-09-23 08:40:58: [206326] Sending 
<d:\mdaemon\remoteq\pd35000036430.msg> to [203.179.21.129]
Mon 2013-09-23 08:40:58: [206326] Transfer Complete
Mon 2013-09-23 08:40:58: [206326] <-- 250 2.0.0 r8N1etlP017132 Message accepted 
for delivery
Mon 2013-09-23 08:40:58: [206326] --> QUIT
Mon 2013-09-23 08:40:58: [206326] <-- 221 2.0.0 mx0.epson.co.jp closing 
connection
Mon 2013-09-23 08:40:58: [206326] SMTP session successful (Bytes in/out: 
807/6060)
Mon 2013-09-23 08:40:58: ----------

**********************************************************************************
-----------------------------------

LOG E-MAIL yg Tidak Sampai
-----------------------------------
--------------------------------------------------------------------------
YOUR MESSAGE WAS NOT DELIVERED TO ONE OR MORE RECIPIENTS
--------------------------------------------------------------------------

Failed address: [email protected]

--- Session Transcript ---
 Mon 2013-09-23 08:38:42: [206310] Session 206310; child 0001
 Mon 2013-09-23 08:38:42: [206310] Parsing message 
<xxxxxxxxxxxxxxxxxx\pd35000036432.msg>
 Mon 2013-09-23 08:38:42: [206310] *  From: [email protected]
 Mon 2013-09-23 08:38:42: [206310] *  To: [email protected]
 Mon 2013-09-23 08:38:42: [206310] *  Subject: FW: ?????
 Mon 2013-09-23 08:38:42: [206310] *  Size (bytes): 6117
 Mon 2013-09-23 08:38:42: [206310] *  Message-ID: 
<[email protected]>
 Mon 2013-09-23 08:38:42: [206310] Attempting SMTP connection to [epson.co.id]
 Mon 2013-09-23 08:38:42: [206310] Resolving MX records for [epson.co.id] (DNS 
Server: 202.145.0.1)...
 Mon 2013-09-23 08:39:42: [206310] *  DNS: 60 second wait for DNS response 
exceeded (DNS Server: 202.145.0.1)
 Mon 2013-09-23 08:39:42: [206310] Attempting to send message to smart host
 Mon 2013-09-23 08:39:42: [206310] Attempting SMTP connection to 
[server.ait-system.com:25]
 Mon 2013-09-23 08:39:42: [206310] Resolving A record for 
[server.ait-system.com] (DNS Server: 202.145.0.1)...
 Mon 2013-09-23 08:39:42: [206310] *  Name server reports domain name unknown
--- End Transcript ---
: Message contains [1] file attachments

--0923-0839-47-PART-BREAK
Content-Type: message/rfc822; name="md50000000630.eml"
Content-Transfer-Encoding: 7bit

Received: from kojimaPC by ysi.yamani-spring.com (MDaemon PRO v13.5.2)
        with ESMTP id md50000197977.msg
        for <[email protected]>; Mon, 23 Sep 2013 08:38:41 +0700
X-Spam-Processed: office.ysi.yamani-spring.com, Mon, 23 Sep 2013 08:38:41 +0700
        (not processed: message from trusted or authenticated source)
X-Authenticated-Sender: [email protected]
X-Return-Path: [email protected]
X-Envelope-From: [email protected]
X-MDaemon-Deliver-To: [email protected]
From: "Kojima" <[email protected]>
To: "Mr.Iguchi" <[email protected]>
References: <[email protected]>
In-Reply-To: <[email protected]>
Subject: =?iso-2022-jp?B?Rlc6IBskQiQqO0ckJCRON28bKEI=?=
Date: Mon, 23 Sep 2013 08:38:32 +0700
Message-ID: <[email protected]>
MIME-Version: 1.0
Content-Type: multipart/alternative;
        boundary="----=_NextPart_000_000F_01CEB838.4956D5B0"
X-Mailer: Microsoft Outlook 14.0
Thread-Index: AQHaovWQAPii9JcXaz++ZuSZx1SG1Jm6tRqQ
Content-Language: ja

This is a multipart message in MIME format.

Kirim email ke