>Hasilnya akan mirip saja kalau DNS di AD server di set forward ke Public DNS, 
>tetapi keandalan (reliability) lebih baik yang stand alone.

>Kalau join domain maka otomatis DNS resolver akan merujuk ke Active Directory 
>saat login, kecuali di set khusus, kalau tidak maka proses loginna akan lama 
>atau bahkan gagal :-)

>DNS server Anda yang pertamakan pakai internal DNS, sudah mencukupi untuk 
>kebutuhan DNS resolve ke Intranet server (jika diperlukan).

>Jika pakai public DNS pilih yang paling cepat Dari tautan tadi

>http://www.bestfreedns.net/

>akses dengan browser di MDaemon server dan klik "check here".

Pak untuk hal diatas sudah saya terapkan, tapi user kami masih complain bahwa 
ada sebagian email dari customer tersebut yang tidak masuk, saya sudah cek di 
smtp in log tapi tidak ada, mohon advice untuk langkah selanjutnya.
Dan dibawah ini saya mendapatkan error dari customer kami di smtp log in

ue 2013-07-09 14:09:56: [357072:2] Session 357072; child 2
Tue 2013-07-09 14:09:56: [357072:2] Accepting SMTP connection from 
[122.129.112.35:24139] to [165.108.159.10:25]
Tue 2013-07-09 14:09:56: [357072:2] --> 220-mail.jkt.itochu.co.id ESMTP MDaemon 
13.0.4; Tue, 09 Jul 2013 14:09:56 +0700
Tue 2013-07-09 14:09:56: [357072:2] --> 220 No public service mail PT. Itochu 
Indonesia
Tue 2013-07-09 14:09:56: [357072:2] <-- EHLO adrjkesg01.ptadaro.com
Tue 2013-07-09 14:09:56: [357072:2] Performing IP lookup 
(adrjkesg01.ptadaro.com)
Tue 2013-07-09 14:09:56: [357072:2] *  D=adrjkesg01.ptadaro.com TTL=(628) 
A=[122.129.112.35]
Tue 2013-07-09 14:09:56: [357072:2] ---- End IP lookup results
Tue 2013-07-09 14:09:56: [357072:2] --> 250-mail.jkt.itochu.co.id Hello 
adrjkesg01.ptadaro.com, pleased to meet you
Tue 2013-07-09 14:09:56: [357072:2] --> 250-ETRN
Tue 2013-07-09 14:09:56: [357072:2] --> 250-AUTH LOGIN CRAM-MD5 PLAIN
Tue 2013-07-09 14:09:56: [357072:2] --> 250-8BITMIME
Tue 2013-07-09 14:09:56: [357072:2] --> 250-STARTTLS
Tue 2013-07-09 14:09:56: [357072:2] --> 250 SIZE
Tue 2013-07-09 14:09:56: [357072:2] <-- MAIL FROM:<takayuki.sa...@ptbpi.co.id> 
SIZE=19736
Tue 2013-07-09 14:09:56: [357072:2] Performing IP lookup (ptbpi.co.id)
Tue 2013-07-09 14:10:01: [357072:2] *  P=010 S=001 D=ptbpi.co.id TTL=(471) 
MX=[adrjkesg01.ptbpi.co.id] {122.129.112.35}
Tue 2013-07-09 14:10:01: [357072:2] *  P=020 S=002 D=ptbpi.co.id TTL=(471) 
MX=[mail.ptbpi.co.id] {122.129.112.35}
Tue 2013-07-09 14:10:01: [357072:2] *  P=030 S=000 D=ptbpi.co.id TTL=(471) 
MX=[adrjkesg02.ptbpi.co.id] {122.129.112.38}
Tue 2013-07-09 14:10:01: [357072:2] ---- End IP lookup results
Tue 2013-07-09 14:10:01: [357072:2] Performing SPF lookup (ptbpi.co.id / 
122.129.112.35)
Tue 2013-07-09 14:10:18: [357072:2] *  Result: none; no SPF record in DNS
Tue 2013-07-09 14:10:18: [357072:2] ---- End SPF results
Tue 2013-07-09 14:10:18: [357072:2] --> 250 <takayuki.sa...@ptbpi.co.id>, 
Sender ok
Tue 2013-07-09 14:12:33: [357072:2] *  Winsock Error 10060 
Tue 2013-07-09 14:12:33: [357072:2] SMTP session terminated (Bytes in/out: 
80/331)

Salam
Benny


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