On 2015-10-24 06:32, Pusdata Pu wrote: > Mohon bantuan arti smtp log out di MDaemon, sebab ada user kami > kirim mail ke domain garuda-indonesia.com > <http://domaingaruda-indonesia.com> tidak ke sampai ke penerima.
> Mon 2015-10-19 12:37:56.1 02: [708641] <-- 550 5.7.1 Service > unavailable; Client host [103.12.84.170] blocked using FBLW15; To > request removal from this list please forward this message to > [email protected] Mail ditolak karena masuk dalam daftar internal DNS-BL karena tidak punya PTR record. Forwardkan as attachment DSN message tersebut ke [email protected] untuk request of removal dari FBLW15 DNS-BL. Sebaiknya sih diperbaiki setting DNS record untuk IP 103.12.84.170, agar kirim mail ke recipient lain tidak bermasalah (ditolak atau masuk kedalam spam folder). https://mxtoolbox.com/problem/smtp/smtp-reverse-dns-resolution -- start quote -- When a sending server makes a connection to the recipient server, the recipient server notes the sending IP address and performs a reverse lookup, called a PTR lookup, named after the type of DNS record used. If the result of the reverse lookup matches the result of a forward DNS Lookup, then it's much more likely that the message is legitimate. If the IP address doesn't match, it's much more likely that the sending address was spoofed and therefore much more likely that it's unwanted and could be considered spam. An additional test that can be performed is an SMTP Banner check which compares the hostname announced by the server upon initial connection with the forward and reverse lookups. Only the organization which controls an IP can configure PTR records. PTR record queries are sent to the owner of the IP address which is the ISP, unlike other DNS queries which are sent to the DNS server of whoever owns the domain. -- end of quote --- $ host 103.12.84.170 Host 170.84.12.103.in-addr.arpa. not found: 3(NXDOMAIN) mintak dibuatkan PTR record kebagian infrastruktur, sekalian diperbaiki DNS server yang menangani Reverse DNS zone. $ dig 84.12.103.in-addr.arpa @ns1.apnic.net ns 84.12.103.in-addr.arpa. 86400 IN NS ns2.pu.go.id. 84.12.103.in-addr.arpa. 86400 IN NS ns4.pu.go.id. 84.12.103.in-addr.arpa. 86400 IN NS ns1.pu.go.id. 84.12.103.in-addr.arpa. 86400 IN NS ns3.pu.go.id. $ host -t soa 84.12.103.in-addr.arpa ns1.pu.go.id Using domain server: Name: ns1.pu.go.id Address: 222.124.202.137#53 Aliases: 84.12.103.in-addr.arpa has SOA record ns1. hostmaster. 86 900 600 86400 3600 kalau setting reverse DNS zone di ns1.pu.go.id s/d ns4.pu.go.id tidak diperbaiki maka tidak ada PTR (pointer) record yang terbroadcast ke internet. Jika kesulitan setting setting Reverse DNS zone sendiri, bisa minta bantuan ISP (telkom.net.id) untuk melakukannya. -- syafril ------- Syafril Hermansyah Running MDaemon 15.5.1-64 Beta C, SP 4.5.1-64 Yang Anda pikirkan, menentukan yang Anda lakukan.Dan yang Anda lakukan, menentukan yang Anda hasilkan.Maka ukuran dan kualitas dari pikiran Anda,menentukan ukuran dan kualitas hasil dari pekerjaan Anda. -- Mario Teguh -- --[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-unsubscribe [at] dutaint.com Berlangganan: kirim mail ke MDaemon-L-subscribe [at] dutaint.com Versi terakhir MD 15.5.1, SP 4.5.1, BES 2.0.2, OC 3.5, SG 3.0.2
