On 03/10/22 17.24, IT Rimau Group wrote:
Mau Nanya mengenai SMTP terminate ini kenapa ya ?
Mon 2022-10-03 01:28:22.491: 01: ----------
Mon 2022-10-03 01:28:25.854: 05: [01305533] Session 01305533; child 0001
Mon 2022-10-03 01:28:25.854: 05: [01305533] Accepting SMTP connection from
42.240.136.36:50118 <http://42.240.136.36:50118> to 203.142.69.54:465
<http://203.142.69.54:465>
Mon 2022-10-03 01:28:25.854: 07: [01305533] Location Screen says connection is
from China, Asia
Mon 2022-10-03 01:28:26.227: 01: [01305533] SSL negotiation successful (TLS
1.2, 384 bit key exchange, 256 bit AES encryption)
Mon 2022-10-03 01:28:26.227: 03: [01305533] --> 220 email.rimaugroup.com
<http://email.rimaugroup.com> ESMTP Mon, 03 Oct 2022 01:28:26 +0700
Mon 2022-10-03 01:28:26.574: 02: [01305533] <-- USER [email protected]
<mailto:[email protected]>
Mon 2022-10-03 01:28:26.574: 03: [01305533] --> 500 5.0.0 Unrecognized command
Mon 2022-10-03 01:28:26.574: 02: [01305533] <--
Mon 2022-10-03 01:28:26.574: 03: [01305533] --> 500 5.0.0 Unrecognized command
Mon 2022-10-03 01:28:26.574: 04: [01305533] * Socket error 590615 - The sender
has finished using the connection and has initiated a shutdown.
Mon 2022-10-03 01:28:26.575: 04: [01305533] SMTP session terminated (Bytes
in/out: 484/1608)
Itu hacker yang sedang coba-coba apakah server email.rimaugroup.com open relay
atau menduga di server itu akun-akunnya punya alias @gmail.com sehingga bisa di
hijack.
Biarkan saja, nanti juga akan terdeteksi dynamic screening dan diblock.
--
syafril
--------
Syafril Hermansyah
MDaemon-L Moderator, run MDaemon 22.5.0 Beta B
Mohon tidak kirim private mail (atau cc:) untuk masalah MDaemon.
Study the past if you would define the future.
--- Confucius
--
--[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 [email protected]
Henti Langgan: Kirim mail ke [email protected]
Versi terakhir: MDaemon 22.0.3, SecurityGateway 8.5.3
