Kami mendapat pesan dari smarthost kami (smtp.biz.net.id) seperti di bawah ini.  Intinya si penerima tidak ditemukan reverse DNS recordnya.  Apa yang dapat kami lakukan di sisi Mdaemon sebagai server pengirim ?

-----Original Message-----
From: Mail Delivery System [mailto:[email protected]]
Sent: Monday, April 23, 2018 16:59
To:[email protected]
Subject: Undelivered Mail Returned to Sender

This is the mail system at host smtp3.biz.net.id.

I'm sorry to have to inform you that your message could not be delivered to
one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can delete your own
text from the attached returned message.

                   The mail system

<[email protected]>: host
mx1.bankmitraniaga.co.id[103.252.50.60]
    said: 550-The sender 117.102.98.40 has no reverse DNS record - 550
    https://cms2.datacomm.co.id/info#nrdns  (in reply to RCPT TO command)



--
Edhi Fidiawan
[email protected]
MIS Departement
Asuransi Dayin Mitra
Wisma Hayam Wuruk
Jl Hayam Wuruk No 8 Jakarta
Phone : 021 80868888 ext 10711


--
--[mdaemon-l]----------------------------------------------------------
Milis ini untuk Diskusi antar pengguna MDaemon Mail Server di Indonesia

Netiket: https://wiki.openstack.org/wiki/MailingListEtiquette
Arsip: http://mdaemon-l.dutaint.com
Dokumentasi : http://mdaemon.dutaint.co.id
Berlangganan: Kirim mail ke [email protected]
Henti Langgan: Kirim mail ke [email protected]
Versi terakhir MD 18.0 (all-in-one), SG 5.0.1

Kirim email ke