On 26/07/16 14:13, Alim wrote:
> Beberapa sender mengirimkan pesan error atas kegagalan email yang
> dikirim ke domain kami,
>
> 1. Mengapa email tersebut gagal terkirim? apa penyebabnya dan bagaimana
> solusinya
Mail ditolak karena identitas sender host match dengan hostscreening
script server kami.
Dan identitas IP nya (PTR record) tidak sesuai dengan identitas hostnya.
Sudah dibuatkan pengecualian.
Solusinya sender perlu memperbaiki firewallnya agar saat kirim mail ke
internet selalu pakai IP 98.124.245.24 atau ganti nama hostnya menjadi
mail.shinsungworld.com.
> 2. Bagaimana pesan error tersebut dapat terkirim juga ke kami (Administrator)?
Tidak bisa, yang bisa terima adalah postmas...@your-domain.com dan
original sender.
DPL yang punya hak itu adalah pengelola sender host.
Mon 2016-07-25 13:49:28.735: [748355] Session 748355; child 0015
Mon 2016-07-25 13:49:28.735: [748355] Accepting SMTP connection from
58.76.184.13:17987 to 103.253.112.239:25
Mon 2016-07-25 13:49:28.737: [748355] --> 220 dip33.dutaint.com ESMTP
MDaemon 16.0.4; Mon, 25 Jul 2016 13:49:28 +0700
Mon 2016-07-25 13:49:28.827: [748355] <-- EHLO your-domain.com
Mon 2016-07-25 13:49:28.827: [748355] --> 250-dip33.dutaint.com Hello
your-domain.com [58.76.184.13], pleased to meet you
Mon 2016-07-25 13:49:28.827: [748355] --> 250-ETRN
Mon 2016-07-25 13:49:28.827: [748355] --> 250-AUTH LOGIN CRAM-MD5 PLAIN
Mon 2016-07-25 13:49:28.827: [748355] --> 250-8BITMIME
Mon 2016-07-25 13:49:28.827: [748355] --> 250-ENHANCEDSTATUSCODES
Mon 2016-07-25 13:49:28.827: [748355] --> 250-STARTTLS
Mon 2016-07-25 13:49:28.827: [748355] --> 250 SIZE 30720000
Mon 2016-07-25 13:49:28.918: [748355] <-- STARTTLS
Mon 2016-07-25 13:49:28.918: [748355] --> 220 2.7.0 Ready to start TLS
Mon 2016-07-25 13:49:29.124: [748355] SSL negotiation successful (TLS
1.2, 521 bit key exchange, 256 bit AES encryption)
Mon 2016-07-25 13:49:29.215: [748355] <-- EHLO your-domain.com
Mon 2016-07-25 13:49:29.215: [748355] --> 250-dip33.dutaint.com Hello
your-domain.com [58.76.184.13], pleased to meet you
Mon 2016-07-25 13:49:29.215: [748355] --> 250-ETRN
Mon 2016-07-25 13:49:29.215: [748355] --> 250-AUTH LOGIN CRAM-MD5 PLAIN
Mon 2016-07-25 13:49:29.215: [748355] --> 250-8BITMIME
Mon 2016-07-25 13:49:29.215: [748355] --> 250-ENHANCEDSTATUSCODES
Mon 2016-07-25 13:49:29.215: [748355] --> 250 SIZE 30720000
Mon 2016-07-25 13:49:29.305: [748355] <-- MAIL FROM:<ch...@kpackcorp.co.kr>
Mon 2016-07-25 13:49:29.306: [748355] --> 550 5.7.1 Sender unknown
Mon 2016-07-25 13:49:29.306: [748355] Host screening refused connection
to 103.253.112.239:25 from your-domain.com [58.76.184.13:17987] (matched
to line "all your-* refuse")
Mon 2016-07-25 13:49:29.306: [748355] SMTP session terminated (Bytes
in/out: 749/2357)
$ host -t a your-domain.com
your-domain.com has address 98.124.245.24
$ host 58.76.184.13
13.184.76.58.in-addr.arpa domain name pointer mail.shinsungworld.com.
--
syafril
-------
Syafril Hermansyah
MDaemon-L Moderators, MDaemon 16.0.4-64, SP 5.0.1-64
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