> Itu indikasi adanya firewall atau proxy (antivirus) yang aktif memfilter tcp > port > 25. > Beberapa firewall dilengkapi dengan fitur proxy inspector (proxy firewall). > > Coba diperika Firewall Traffic Rule untuk tcp port 25 (dan 110, 143) khsusnya > untuk inbound rule (dari internet ke server MDaemon mail.aio.co.id), samakan > exclusionnya dengan traffic rule port 587. > Traffic rule untuk outbound sudah benar mendukung SMTP/TLS.
Saya sudah cek di Firewall, dan saya sudah membuat rule khusus agar dari semua MX pajak.go.id (Saya cek melalui MX Toolbox) agar tidak di filter, MX-nya sbb : Pref Hostname IP Address TTL 3 mx2.pajak.go.id 103.28.106.91 DJP-AS-ID (AS58476) 5 min Blacklist Check SMTP Test 3 mx4.pajak.go.id 103.28.106.9 DJP-AS-ID (AS58476) 5 min Blacklist Check SMTP Test 6 mx10.pajak.go.id 103.28.106.109 DJP-AS-ID (AS58476) 5 min Blacklist Check SMTP Test 6 mx5.pajak.go.id 103.28.106.112 DJP-AS-ID (AS58476) 5 min Blacklist Check SMTP Test 6 mx6.pajak.go.id 103.28.106.50 DJP-AS-ID (AS58476) 5 min Blacklist Check SMTP Test 6 mx7.pajak.go.id 103.28.106.178 DJP-AS-ID (AS58476) 5 min Blacklist Check SMTP Test 6 mx8.pajak.go.id 103.28.106.179 DJP-AS-ID (AS58476) 5 min Blacklist Check SMTP Test 6 mx9.pajak.go.id 103.28.106.108 DJP-AS-ID (AS58476) 5 min Blacklist Check SMTP Test Namun saya mendapatkan Logs ini, apakah ini karena MX pajak tersebut memang tidak resolve ya (Aneh juga kenapa ada mx12, padahal di MX Toolbox tidak ada mx12.pajak.go.id) : === Tue 2025-03-18 10:42:58.526: [36983393] Session 36983393; child 0003 Tue 2025-03-18 10:42:58.526: [36983393] Accepting SMTP connection from 103.28.106.109:60105 to 192.168.1.19:25 Tue 2025-03-18 10:42:58.526: [36983393] Location Screen says connection is from Indonesia, Asia Tue 2025-03-18 10:42:58.527: [36983393] --> 220 mail.aio.co.id ESMTP MDaemon 23.0.1; Tue, 18 Mar 2025 10:42:58 +0700 Tue 2025-03-18 10:42:58.531: [36983393] <-- EHLO mx12.pajak.go.id Tue 2025-03-18 10:42:58.531: [36983393] --> 250-mail.aio.co.id Hello mx12.pajak.go.id [103.28.106.109], pleased to meet you Tue 2025-03-18 10:42:58.531: [36983393] --> 250-ETRN Tue 2025-03-18 10:42:58.531: [36983393] --> 250-8BITMIME Tue 2025-03-18 10:42:58.531: [36983393] --> 250-ENHANCEDSTATUSCODES Tue 2025-03-18 10:42:58.531: [36983393] --> 250-PIPELINING Tue 2025-03-18 10:42:58.531: [36983393] --> 250-CHUNKING Tue 2025-03-18 10:42:58.531: [36983393] --> 250-STARTTLS Tue 2025-03-18 10:42:58.531: [36983393] --> 250 SIZE 52428800 Tue 2025-03-18 10:42:58.535: [36983393] <-- STARTTLS Tue 2025-03-18 10:42:58.535: [36983393] --> 220 2.7.0 Ready to start TLS Tue 2025-03-18 10:42:58.552: [36983393] SSL negotiation successful (TLS 1.2, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) Tue 2025-03-18 10:42:58.555: [36983393] <-- EHLO mx12.pajak.go.id Tue 2025-03-18 10:42:58.555: [36983393] --> 250-mail.aio.co.id Hello mx12.pajak.go.id [103.28.106.109], pleased to meet you Tue 2025-03-18 10:42:58.555: [36983393] --> 250-ETRN Tue 2025-03-18 10:42:58.555: [36983393] --> 250-8BITMIME Tue 2025-03-18 10:42:58.555: [36983393] --> 250-ENHANCEDSTATUSCODES Tue 2025-03-18 10:42:58.555: [36983393] --> 250-PIPELINING Tue 2025-03-18 10:42:58.555: [36983393] --> 250-CHUNKING Tue 2025-03-18 10:42:58.555: [36983393] --> 250-REQUIRETLS Tue 2025-03-18 10:42:58.555: [36983393] --> 250 SIZE 52428800 Tue 2025-03-18 10:42:58.561: [36983393] <-- MAIL FROM:<no-re...@pajak.go.id> SIZE=278206 Tue 2025-03-18 10:42:58.563: [36983393] Performing PTR lookup (109.106.28.103.IN-ADDR.ARPA) Tue 2025-03-18 10:42:58.564: [36983393] * D=109.106.28.103.IN-ADDR.ARPA TTL=(5) PTR=[mailout-06.pajak.go.id] Tue 2025-03-18 10:42:58.564: [36983393] * D=109.106.28.103.IN-ADDR.ARPA TTL=(5) PTR=[mx10.pajak.go.id] Tue 2025-03-18 10:42:58.566: [36983393] * D=mailout-06.pajak.go.id TTL=(5) A=[103.28.106.109] Tue 2025-03-18 10:42:58.567: [36983393] * D=mx10.pajak.go.id TTL=(0) A=[103.28.106.109] Tue 2025-03-18 10:42:58.567: [36983393] ---- End PTR results Tue 2025-03-18 10:42:58.573: [36983393] Performing IP lookup (mx12.pajak.go.id) Tue 2025-03-18 10:42:58.576: [36983393] * DNS server reports domain name unknown Tue 2025-03-18 10:42:58.576: [36983393] ---- End IP lookup results Tue 2025-03-18 10:42:58.576: [36983393] --> 501 5.7.0 mx12.pajak.go.id host can't be resolved Tue 2025-03-18 10:42:58.576: [36983393] SMTP session terminated (Bytes in/out: 498/3709) Tue 2025-03-18 10:42:58.576: ---------- == Namun di logs ini saya melihat ada yang Namanya : mailout-06.pajak.go.id (sepertinya ini untuk SMTP Outbound) , Ini cara kita cek pajak.go.id pakai SMTP Outbound dengan nama apa saja, bagaimana caranya ya pak ? 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.com Berlangganan: Kirim mail ke mdaemon-l-subscr...@dutaint.com Henti Langgan: Kirim mail ke mdaemon-l-unsubscr...@dutaint.com Versi terakhir: MDaemon 25.0.0, SecurityGateway 10.5.3
