Dear Pak Syafril,
Beberapa hari ini email server kami banyak yang mencoba kirim email menggunakan user tidak dikenal dan inactive dari ptist.co.id. Hal ini kenapa dan bagaimana mencegah untuk hal ini tidak terjadi? Berikut contoh salah satu SMTP in-nya : Fri 2015-05-29 09:57:51: Session 695; child 10; thread 0 Fri 2015-05-29 09:57:51: Accepting SMTP connection from [186.78.66.84:17991] to [192.168.0.251:25] Fri 2015-05-29 09:57:51: --> 220 mail.ptist.co.id ESMTP MDaemon 11.0.1; Fri, 29 May 2015 09:57:51 +0700 Fri 2015-05-29 09:57:52: <-- EHLO 186-78-66-84.baf.movistar.cl Fri 2015-05-29 09:57:52: --> 250-mail.ptist.co.id Hello 186-78-66-84.baf.movistar.cl, pleased to meet you Fri 2015-05-29 09:57:52: --> 250-ETRN Fri 2015-05-29 09:57:52: --> 250-AUTH=LOGIN Fri 2015-05-29 09:57:52: --> 250-AUTH LOGIN CRAM-MD5 Fri 2015-05-29 09:57:52: --> 250-8BITMIME Fri 2015-05-29 09:57:52: --> 250 SIZE 15000000 Fri 2015-05-29 09:57:52: <-- MAIL From:<[email protected]> Fri 2015-05-29 09:57:52: Performing PTR lookup (84.66.78.186.IN-ADDR.ARPA) Fri 2015-05-29 09:57:52: * D=84.66.78.186.IN-ADDR.ARPA TTL=(1439) PTR=[186-78-66-84.baf.movistar.cl] Fri 2015-05-29 09:57:52: * Gathering A records... Fri 2015-05-29 09:57:52: * D=186-78-66-84.baf.movistar.cl TTL=(59) A=[186.78.66.84] Fri 2015-05-29 09:57:52: ---- End PTR results Fri 2015-05-29 09:57:52: Performing IP lookup (186-78-66-84.baf.movistar.cl) Fri 2015-05-29 09:57:52: * D=186-78-66-84.baf.movistar.cl TTL=(59) A=[186.78.66.84] Fri 2015-05-29 09:57:52: ---- End IP lookup results Fri 2015-05-29 09:57:52: Performing IP lookup (ptist.co.id) Fri 2015-05-29 09:57:52: * D=ptist.co.id TTL=(14) A=[203.130.196.225] Fri 2015-05-29 09:57:52: * P=010 S=000 D=ptist.co.id TTL=(13) MX=[mail.ptist.co.id] {222.124.29.36} Fri 2015-05-29 09:57:52: * P=020 S=001 D=ptist.co.id TTL=(13) MX=[mx1.telkom.net.id] Fri 2015-05-29 09:57:52: * D=ptist.co.id TTL=(14) A=[203.130.196.225] Fri 2015-05-29 09:57:52: ---- End IP lookup results Fri 2015-05-29 09:57:52: --> 550 <[email protected]>, Sender unknown Fri 2015-05-29 09:57:53: * Winsock Error 10054 Connection was reset by the other side! Fri 2015-05-29 09:57:53: SMTP session terminated (Bytes in/out: 70/283) Fri 2015-05-29 09:57:53: ---------- Terima kasih atas bantuan dan solusinya. Regards, Agus Firmansyah -- --[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 15.0.1, SP 4.5, BES 2.0.2, OC 3.5, SG 3.0.2
