Yth Pak Syafril,

Mohon bantuan untuk error berikut :

Fri 2020-06-05 13:50:20.897: SMTP session successful (Bytes in/out: 7871/549)
Fri 2020-06-05 13:50:20.904: ----------
Fri 2020-06-05 13:50:21.249: Session 797871; child 0006
Fri 2020-06-05 13:50:21.249: Accepting SMTP connection from 202.58.220.10:50431 to 202.150.137.87:25 Fri 2020-06-05 13:50:21.272: --> 220 mailhub.kobexindo.com ESMTP MDaemon 19.5.5; Fri, 05 Jun 2020 13:50:21 +0700
Fri 2020-06-05 13:50:21.280: <-- EHLO merak.jetcoms.net
Fri 2020-06-05 13:50:21.292: --> 250-mailhub.kobexindo.com Hello merak.jetcoms.net [202.58.220.10], pleased to meet you
Fri 2020-06-05 13:50:21.292: --> 250-ETRN
Fri 2020-06-05 13:50:21.292: --> 250-AUTH LOGIN CRAM-MD5 PLAIN
Fri 2020-06-05 13:50:21.292: --> 250-8BITMIME
Fri 2020-06-05 13:50:21.292: --> 250-ENHANCEDSTATUSCODES
Fri 2020-06-05 13:50:21.292: --> 250-STARTTLS
Fri 2020-06-05 13:50:21.292: --> 250 SIZE
Fri 2020-06-05 13:50:21.296: <-- STARTTLS
Fri 2020-06-05 13:50:21.296: --> 220 2.7.0 Ready to start TLS
Fri 2020-06-05 13:50:21.358: SSL negotiation successful (TLS 1.2, 256 bit key exchange, 256 bit AES encryption)
Fri 2020-06-05 13:50:21.362: <-- EHLO merak.jetcoms.net
Fri 2020-06-05 13:50:21.371: --> 250-mailhub.kobexindo.com Hello merak.jetcoms.net [202.58.220.10], pleased to meet you
Fri 2020-06-05 13:50:21.371: --> 250-ETRN
Fri 2020-06-05 13:50:21.371: --> 250-AUTH LOGIN CRAM-MD5 PLAIN
Fri 2020-06-05 13:50:21.371: --> 250-8BITMIME
Fri 2020-06-05 13:50:21.371: --> 250-ENHANCEDSTATUSCODES
Fri 2020-06-05 13:50:21.371: --> 250 SIZE
Fri 2020-06-05 13:50:21.376: <-- MAIL FROM:<deni.perm...@jetcoms.co.id> SIZE=438503 Fri 2020-06-05 13:50:21.388: Performing PTR lookup (10.220.58.202.IN-ADDR.ARPA) Fri 2020-06-05 13:50:21.417: *  D=10.220.58.202.IN-ADDR.ARPA TTL=(1440) PTR=[merak.jetcoms.net] Fri 2020-06-05 13:50:21.424: *  D=merak.jetcoms.net TTL=(60) A=[202.47.77.130] Fri 2020-06-05 13:50:21.424: *  MDaemon configured to drop connection on PTR record mismatch
Fri 2020-06-05 13:50:21.424: ---- End PTR results
Fri 2020-06-05 13:50:21.425: --> 501 5.7.0 Domain must resolve
Fri 2020-06-05 13:50:21.426: SMTP session terminated (Bytes in/out: 744/1962)


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