Selamat siang Pak Syafril dan rekan2 sekalian, User saya sering sekali tidak bisa terima email, ketika dicek log, detilnya seperti dibawah ini :
Wed 2026-02-25 08:45:05.829: 05: [72746371] Session 72746371; child 0002 Wed 2026-02-25 08:45:05.829: 05: [72746371] Accepting SMTP connection from 210.210.188.91:16980 to 192.168.19.4:25 Wed 2026-02-25 08:45:05.829: 03: [72746371] --> 220 mail.indokemika.co.id ESMTP Wed, 25 Feb 2026 08:45:05 +0700 Wed 2026-02-25 08:45:05.830: 02: [72746371] <-- EHLO pmg-03.localdomain Wed 2026-02-25 08:45:05.831: 03: [72746371] --> 250-mail.indokemika.co.id Hello pmg-03.localdomain [210.210.188.91], pleased to meet you Wed 2026-02-25 08:45:05.831: 03: [72746371] --> 250-ETRN Wed 2026-02-25 08:45:05.831: 03: [72746371] --> 250-AUTH LOGIN CRAM-MD5 PLAIN Wed 2026-02-25 08:45:05.831: 03: [72746371] --> 250-8BITMIME Wed 2026-02-25 08:45:05.831: 03: [72746371] --> 250-ENHANCEDSTATUSCODES Wed 2026-02-25 08:45:05.831: 03: [72746371] --> 250-PIPELINING Wed 2026-02-25 08:45:05.831: 03: [72746371] --> 250-CHUNKING Wed 2026-02-25 08:45:05.831: 03: [72746371] --> 250-STARTTLS Wed 2026-02-25 08:45:05.831: 03: [72746371] --> 250 SIZE 52428800 Wed 2026-02-25 08:45:05.832: 02: [72746371] <-- MAIL FROM:< [email protected]> SIZE=47978 BODY=8BITMIME Wed 2026-02-25 08:45:05.837: 05: [72746371] Performing IP lookup (pmg-03.localdomain) Wed 2026-02-25 08:45:05.900: 04: [72746371] * DNS server reports domain name unknown Wed 2026-02-25 08:45:05.900: 05: [72746371] ---- End IP lookup results Wed 2026-02-25 08:45:05.900: 03: [72746371] --> 501 5.7.0 pmg-03.localdomain host can't be resolved Wed 2026-02-25 08:45:05.900: 04: [72746371] SMTP session terminated (Bytes in/out: 141/351) Ini masalah di server sender or recipient ya? Bagaimana cara mengatasi masalah ini agar tidak terulang lagi? Terima kasih atas bantuannya, Rusdi -- --[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 [email protected] Henti Langgan: Kirim mail ke [email protected] Versi terakhir: MDaemon 25.5.2, SecurityGateway 12.0.1
