Selamat Siang Pak Syafrill

Mohon bantuannya, saya sedang men seting email backup saya yaitu 
[email protected] agar auto fw ke email utama [email protected]
namun saya mendapatkan email tolakan seperti terlampir

berikut log SMTP – (IN) : 

Wed 2019-06-19 12:19:01.217: ----------
Wed 2019-06-19 12:19:23.496: [646687] Session 646687; child 0001
Wed 2019-06-19 12:19:23.496: [646687] Accepting SMTP connection from 
202.148.11.240:56708 to 172.16.0.6:25
Wed 2019-06-19 12:19:23.496: [646687] --> 220 bb.ptbmi.com ESMTP MDaemon 
18.5.2; Wed, 19 Jun 2019 12:19:23 +0700
Wed 2019-06-19 12:19:23.505: [646687] <-- EHLO smtp2-serv2.dwp.net.id
Wed 2019-06-19 12:19:23.505: [646687] --> 250-bb.ptbmi.com Hello 
smtp2-serv2.dwp.net.id [202.148.11.240], pleased to meet you
Wed 2019-06-19 12:19:23.505: [646687] --> 250-ETRN
Wed 2019-06-19 12:19:23.505: [646687] --> 250-AUTH LOGIN PLAIN
Wed 2019-06-19 12:19:23.505: [646687] --> 250-8BITMIME
Wed 2019-06-19 12:19:23.505: [646687] --> 250-ENHANCEDSTATUSCODES
Wed 2019-06-19 12:19:23.505: [646687] --> 250-STARTTLS
Wed 2019-06-19 12:19:23.505: [646687] --> 250 SIZE 35840000
Wed 2019-06-19 12:19:23.516: [646687] <-- STARTTLS
Wed 2019-06-19 12:19:23.516: [646687] --> 220 2.7.0 Ready to start TLS
Wed 2019-06-19 12:19:23.549: [646687] SSL negotiation successful (TLS 1.2, 521 
bit key exchange, 256 bit AES encryption)
Wed 2019-06-19 12:19:23.675: [646687] <-- EHLO smtp2-serv2.dwp.net.id
Wed 2019-06-19 12:19:23.675: [646687] --> 250-bb.ptbmi.com Hello 
smtp2-serv2.dwp.net.id [202.148.11.240], pleased to meet you
Wed 2019-06-19 12:19:23.675: [646687] --> 250-ETRN
Wed 2019-06-19 12:19:23.675: [646687] --> 250-AUTH LOGIN PLAIN
Wed 2019-06-19 12:19:23.675: [646687] --> 250-8BITMIME
Wed 2019-06-19 12:19:23.675: [646687] --> 250-ENHANCEDSTATUSCODES
Wed 2019-06-19 12:19:23.675: [646687] --> 250 SIZE 35840000
Wed 2019-06-19 12:19:23.684: [646687] <-- MAIL 
FROM:<[email protected]> SIZE=5704 BODY=7BIT
Wed 2019-06-19 12:19:23.687: [646687] --> 530 5.7.0 Authentication required
Wed 2019-06-19 12:19:23.687: [646687] [email protected] may 
not send mail from 202.148.11.240 (IP Shield)
Wed 2019-06-19 12:19:23.710: [646687] <-- RSET
Wed 2019-06-19 12:19:23.711: [646687] --> 250 2.0.0 RSET? Well, OK
Wed 2019-06-19 12:19:23.717: [646687] <-- QUIT
Wed 2019-06-19 12:19:23.717: [646687] --> 221 2.0.0 See ya in cyberspace
Wed 2019-06-19 12:19:23.718: [646687] SMTP session terminated (Bytes in/out: 
1226/4108)
Wed 2019-06-19 12:19:23.718: ----------


Terdeteksi : 
Wed 2019-06-19 12:19:23.684: [646687] <-- MAIL 
FROM:<[email protected]> SIZE=5704 BODY=7BIT
Wed 2019-06-19 12:19:23.687: [646687] --> 530 5.7.0 Authentication required
Wed 2019-06-19 12:19:23.687: [646687] [email protected] may 
not send mail from 202.148.11.240 (IP Shield)

Action :
Menambahkan IP Relayhost 202.148.11.240 kedalam smtp authentication credential 
whitelist
apakah betul Pak ?

atau mungkin analisa dan action saya salah ?

Mohon pencerahannya Pak.


Terimakasih
Rievo
--- Begin Message ---
This is the mail system at host smtp2-serv2.dwp.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 bb.ptbmi.com[202.148.25.131] said: 530 5.7.0
    Authentication required (in reply to MAIL FROM command)
Reporting-MTA: dns; smtp2-serv2.dwp.net.id
X-Postfix-Queue-ID: 50A42FC005
X-Postfix-Sender: rfc822; [email protected]
Arrival-Date: Wed, 19 Jun 2019 12:19:23 +0700 (WIB)

Final-Recipient: rfc822; [email protected]
Original-Recipient: rfc822;[email protected]
Action: failed
Status: 5.7.0
Remote-MTA: dns; bb.ptbmi.com
Diagnostic-Code: smtp; 530 5.7.0 Authentication required
--- Begin Message ---
Tes Email 

--- End Message ---

--- End Message ---

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