Selamat siang Pak Syafril,

mohon bantuan untuk solusi dari error LOG dibawah ini..

terima kasih.
------------------------------
33:41.825: [448353] Session 448353; child 0002
Thu 2018-10-11 16:33:41.825: [448353] Accepting SMTP connection from 
202.95.141.26:55925 to 103.4.165.123:25
Thu 2018-10-11 16:33:41.827: [448353] --> 220 mail.musica-studios.co.id ESMTP 
MDaemon 17.0.0; Thu, 11 Oct 2018 16:33:41 +0700
Thu 2018-10-11 16:33:41.848: [448353] <-- EHLO excspx.panin.co.id
Thu 2018-10-11 16:33:41.848: [448353] EHLO/HELO response delayed 10 seconds
Thu 2018-10-11 16:33:51.848: [448353] --> 250-mail.musica-studios.co.id Hello 
excspx.panin.co.id [202.95.141.26], pleased to meet you
Thu 2018-10-11 16:33:51.848: [448353] --> 250-ETRN
Thu 2018-10-11 16:33:51.848: [448353] --> 250-AUTH LOGIN PLAIN
Thu 2018-10-11 16:33:51.848: [448353] --> 250-8BITMIME
Thu 2018-10-11 16:33:51.848: [448353] --> 250-ENHANCEDSTATUSCODES
Thu 2018-10-11 16:33:51.848: [448353] --> 250-STARTTLS
Thu 2018-10-11 16:33:51.848: [448353] --> 250 SIZE
Thu 2018-10-11 16:33:51.852: [448353] <-- STARTTLS
Thu 2018-10-11 16:33:51.852: [448353] --> 220 2.7.0 Ready to start TLS
Thu 2018-10-11 16:33:51.912: [448353] SSL negotiation successful (TLS 1.2, 2048 
bit key exchange, 128 bit  encryption)
Thu 2018-10-11 16:33:51.949: [448353] <-- EHLO excspx.panin.co.id
Thu 2018-10-11 16:33:51.950: [448353] --> 250-mail.musica-studios.co.id Hello 
excspx.panin.co.id [202.95.141.26], pleased to meet you
Thu 2018-10-11 16:33:51.950: [448353] --> 250-ETRN
Thu 2018-10-11 16:33:51.950: [448353] --> 250-AUTH LOGIN PLAIN
Thu 2018-10-11 16:33:51.950: [448353] --> 250-8BITMIME
Thu 2018-10-11 16:33:51.950: [448353] --> 250-ENHANCEDSTATUSCODES
Thu 2018-10-11 16:33:51.950: [448353] --> 250 SIZE
Thu 2018-10-11 16:33:51.959: [448353] <-- MAIL 
FROM:<[email protected]> SIZE=24008
Thu 2018-10-11 16:33:51.965: [448353] Performing PTR lookup 
(26.141.95.202.IN-ADDR.ARPA)
Thu 2018-10-11 16:33:51.972: [448353] *  D=26.141.95.202.IN-ADDR.ARPA TTL=(50) 
PTR=[26.141.95.202.jkt.pesat.net.id]
Thu 2018-10-11 16:33:51.995: [448353] *  No A/AAAA records found
Thu 2018-10-11 16:33:51.995: [448353] ---- End PTR results
Thu 2018-10-11 16:33:52.001: [448353] Performing IP lookup (excspx.panin.co.id)
Thu 2018-10-11 16:33:52.018: [448353] *  DNS server reports domain name unknown
Thu 2018-10-11 16:33:52.018: [448353] ---- End IP lookup results
Thu 2018-10-11 16:33:52.018: [448353] --> 501 5.7.0 excspx.panin.co.id host 
can't be resolved
Thu 2018-10-11 16:33:52.019: [448353] SMTP session terminated (Bytes in/out: 
810/1742)--
--[mdaemon-l]----------------------------------------------------------
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