Pak syafril, mohon update PTR dari log dibawah ini:
Thu 2018-03-08 11:15:14.635: [961821] Session 961821; child 0003 Thu 2018-03-08 11:15:14.635: [961821] Accepting SMTP connection from 180.235.151.82:46520 to 10.0.0.6:25 Thu 2018-03-08 11:15:14.649: [961821] --> 220 mail.kompas.tv ESMTP MDaemon 17.0.2; Thu, 08 Mar 2018 11:15:14 +0700 Thu 2018-03-08 11:15:14.680: [961821] <-- EHLO mandar.empatdns.com Thu 2018-03-08 11:15:14.689: [961821] --> 250-mail.kompas.tv Hello mandar.empatdns.com [180.235.151.82], pleased to meet you Thu 2018-03-08 11:15:14.691: [961821] --> 250-ETRN Thu 2018-03-08 11:15:14.691: [961821] --> 250-AUTH LOGIN CRAM-MD5 PLAIN Thu 2018-03-08 11:15:14.692: [961821] --> 250-8BITMIME Thu 2018-03-08 11:15:14.692: [961821] --> 250-ENHANCEDSTATUSCODES Thu 2018-03-08 11:15:14.693: [961821] --> 250 SIZE 20480000 Thu 2018-03-08 11:15:14.728: [961821] <-- MAIL FROM:<ni...@orlansoft.com> SIZE=38693 Thu 2018-03-08 11:15:14.731: [961821] Performing PTR lookup (82.151.235.180.IN-ADDR.ARPA) Thu 2018-03-08 11:15:14.782: [961821] * D=82.151.235.180.IN-ADDR.ARPA TTL=(4) PTR=[mandar.empatdns.com] Thu 2018-03-08 11:15:14.824: [961821] * D=mandar.empatdns.com TTL=(22) A=[180.235.149.196] Thu 2018-03-08 11:15:14.825: [961821] * MDaemon configured to drop connection on PTR record mismatch Thu 2018-03-08 11:15:14.825: [961821] ---- End PTR results Thu 2018-03-08 11:15:14.825: [961821] --> 501 5.7.0 Domain must resolve Thu 2018-03-08 11:15:14.825: [961821] SMTP session terminated (Bytes in/out: 70/288) Regards, Thariq Basyir -- --MDaemon-L---------------------------------------------------------- Milis ini untuk Diskusi antar pengguna MDaemon Mail Server. Netiket: https://wiki.openstack.org/wiki/MailingListEtiquette Arsip: http://mdaemon-l.dutaint.com Dokumentasi : http://mdaemon.dutaint.co.id Henti Langgan: Kirim mail ke mdaemon-l-unsubscr...@dutaint.com Versi terakhir MD 17.5.2, SP 5.5, OC 5.0.1, SG 5.0.1