Selamat Pagi 

Dear Pak Syafril
Mohon bantuannya untuk bisa update log error di bawah ini : 

Wed 2021-06-02 08:56:29.295: ----------
Wed 2021-06-02 08:56:27.844: [28581367] Session 28581367; child 0034
Wed 2021-06-02 08:56:27.844: [28581367] Accepting SMTP connection from
103.157.117.149:39220 to 172.16.0.6:25
Wed 2021-06-02 08:56:27.844: [28581367] Location Screen says connection is
from Indonesia, Asia
Wed 2021-06-02 08:56:27.845: [28581367] --> 220 bb.ptbmi.com ESMTP MDaemon
21.0.1; Wed, 02 Jun 2021 08:56:27 +0700
Wed 2021-06-02 08:56:27.880: [28581367] <-- EHLO mail.ikt-hosting.com
Wed 2021-06-02 08:56:27.880: [28581367] --> 250-bb.ptbmi.com Hello
mail.ikt-hosting.com [103.157.117.149], pleased to meet you
Wed 2021-06-02 08:56:27.880: [28581367] --> 250-ETRN
Wed 2021-06-02 08:56:27.880: [28581367] --> 250-8BITMIME
Wed 2021-06-02 08:56:27.880: [28581367] --> 250-ENHANCEDSTATUSCODES
Wed 2021-06-02 08:56:27.880: [28581367] --> 250-STARTTLS
Wed 2021-06-02 08:56:27.880: [28581367] --> 250 SIZE 36700160
Wed 2021-06-02 08:56:27.913: [28581367] <-- STARTTLS
Wed 2021-06-02 08:56:27.913: [28581367] --> 220 2.7.0 Ready to start TLS
Wed 2021-06-02 08:56:27.990: [28581367] SSL negotiation successful (TLS 1.2,
521 bit key exchange, 256 bit AES encryption)
Wed 2021-06-02 08:56:28.025: [28581367] <-- EHLO mail.ikt-hosting.com
Wed 2021-06-02 08:56:28.025: [28581367] --> 250-bb.ptbmi.com Hello
mail.ikt-hosting.com [103.157.117.149], pleased to meet you
Wed 2021-06-02 08:56:28.025: [28581367] --> 250-ETRN
Wed 2021-06-02 08:56:28.025: [28581367] --> 250-8BITMIME
Wed 2021-06-02 08:56:28.025: [28581367] --> 250-ENHANCEDSTATUSCODES
Wed 2021-06-02 08:56:28.025: [28581367] --> 250-REQUIRETLS
Wed 2021-06-02 08:56:28.025: [28581367] --> 250 SIZE 36700160
Wed 2021-06-02 08:56:28.062: [28581367] <-- MAIL FROM:<an...@ptagyss.com>
SIZE=1825832
Wed 2021-06-02 08:56:28.066: [28581367] Performing PTR lookup
(149.117.157.103.IN-ADDR.ARPA)
Wed 2021-06-02 08:56:29.465: [28581367] *  D=149.117.157.103.IN-ADDR.ARPA
TTL=(5) A=[36.86.63.182]
Wed 2021-06-02 08:56:29.465: [28581367] *  No A/AAAA records found
Wed 2021-06-02 08:56:29.465: [28581367] *  MDaemon configured to drop
connection on PTR record mismatch
Wed 2021-06-02 08:56:29.465: [28581367] ---- End PTR results
Wed 2021-06-02 08:56:29.465: [28581367] --> 501 5.7.0 Domain must resolve
Wed 2021-06-02 08:56:29.465: [28581367] SMTP session terminated (Bytes
in/out: 757/4269)
Wed 2021-06-02 08:56:29.465: ----------

O iya Pak, kalau kasus seperti ini kan di karenakan identitas sender tidak
cocok dengan IPnya
Dari sisi sender apa yang perlu di lakukan ya Pak ?

Terima Kasih
Rievo



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