Dear Pak Syafril, Mohon di bantu, saya ada kendala penerimaan e-mail dari domain @boomsingapore.com dan @agt.com.sg, Jika saya cek melalui MX Toolbox, ini sepertinya issue terkait Reverse Lookups, saya sudah tambahkan di Whitelist, namun e-mail masih bounce back, yang Sudah di tambahkan, sbb :
96.127.190.2 #boomsingapore.com 1 107.6.149.10 #boomsingapore.com 2 184.154.208.34 #boomsingapore.com 3 99.198.97.42 #boomsingapore.com 4 184.154.177.50 #boomsingapore.com 5 108.163.220.50 #boomsingapore.com 6 107.6.129.66 #boomsingapore.com 7 69.175.69.90 #boomsingapore.com 8 108.178.13.114 #boomsingapore.com 9 184.154.48.170 #boomsingapore.com 10 108.163.228.170 #boomsingapore.com 11 184.154.58.226 #boomsingapore.com 12 108.163.201.226 #boomsingapore.com 13 96.127.176.250 #boomsingapore.com 14 96.127.190.3 #boomsingapore.com 15 107.6.149.11 #boomsingapore.com 16 184.154.208.35 #boomsingapore.com 17 184.154.177.51 #boomsingapore.com 18 108.163.220.51 #boomsingapore.com 19 108.178.14.82 #boomsingapore.com 20 184.154.136.82 #boomsingapore.com 21 69.175.69.91 #boomsingapore.com 22 108.178.13.115 #boomsingapore.com 23 184.154.48.171 #boomsingapore.com 24 108.163.228.171 #boomsingapore.com 25 184.154.58.227 #boomsingapore.com 26 108.163.201.227 #boomsingapore.com 27 96.127.176.251 #boomsingapore.com 28 96.127.190.4 #boomsingapore.com 29 107.6.149.12 #boomsingapore.com 30 184.154.208.36 #boomsingapore.com 31 184.154.177.52 #boomsingapore.com 32 108.163.220.52 #boomsingapore.com 33 108.178.14.83 #boomsingapore.com 34 184.154.136.83 #boomsingapore.com 35 69.175.69.92 #boomsingapore.com 36 108.178.13.116 #boomsingapore.com 37 184.154.48.172 #boomsingapore.com 38 108.163.228.172 #boomsingapore.com 39 184.154.58.228 #boomsingapore.com 40 108.163.201.228 #boomsingapore.com 41 96.127.176.252 #boomsingapore.com 42 Error yang di terima oleh si pengirim, sbb : -----Original Message----- From: Mail Delivery System [mailto:mailer-dae...@se9.mailspamprotection.com] Sent: Wednesday, 5 December 2018 4:11 PM To: ad...@agt.com.sg Subject: Mail delivery failed: returning message to sender This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: irene...@aio.co.id host mail.aio.co.id [202.158.62.55] SMTP error from remote mail server after MAIL FROM:<ad...@agt.com.sg> SIZE=574069: 501 5.7.0 Domain must resolve Action: failed Final-Recipient: rfc822;irene...@aio.co.id Status: 5.0.0 Remote-MTA: dns; mail.aio.co.id Diagnostic-Code: smtp; 501 5.7.0 Domain must resolve Mohon pencerahannya, bagaiman solusi terbaiknya untuk issue yang seperti ini. Best Regards, Slamet Raharjo IT Dept. -- --[mdaemon-l]---------------------------------------------------------- Milis ini untuk Diskusi antar pengguna MDaemon Mail Server di Indonesia Netiket: https://wiki.openstack.org/wiki/MailingListEtiquette Arsip: http://mdaemon-l.dutaint.com Dokumentasi : http://mdaemon.dutaint.co.id Berlangganan: Kirim mail ke mdaemon-l-subscr...@dutaint.com Henti Langgan: Kirim mail ke mdaemon-l-unsubscr...@dutaint.com Versi terakhir MD 18.5.1, SG 5.5.0
