Dear Pak Syafril,

Mohon pencerahan dan analisisnya. Kami baru mengganti ISP sehingga IP Public 
MDaemon Server juga berubah.

Telah kami test, kalau kirim email biasa ke luar (Compose New Email) itu 
berjalan dengan lancar. Namun saya perhatikan di log apabila user mengaktifkan 
Mail Forwarding ke domain eksternal (cth: ke gmail, office365), email gagal 
terkirim. Berikut ini smtp-out log nya

Tue 2021-08-03 16:11:24.208: [356133] Session 356133; child 0004
Tue 2021-08-03 16:11:24.208: [356133] Parsing message 
<d:\mdaemon\queues\remote\pd50006568587.msg>
Tue 2021-08-03 16:11:24.209: [356133] *  Forwarded from: 
dani.yuna...@ciputra.co.id
Tue 2021-08-03 16:11:24.209: [356133] *  From: indonesiaenquir...@ap.jll.com
Tue 2021-08-03 16:11:24.209: [356133] *  To: dani.yuna...@ciputra.com
Tue 2021-08-03 16:11:24.209: [356133] *  Subject: Real Estate Weekly Indonesia 
| 8 August 2021
Tue 2021-08-03 16:11:24.209: [356133] *  Size (bytes): 201751
Tue 2021-08-03 16:11:24.209: [356133] *  Message-ID: 
<712f1217a01a4e68be0c7a78c0aced6f@362000045>
Tue 2021-08-03 16:11:24.215: [356133] Resolving MX record for ciputra.com (DNS 
Server: 202.158.38.162)...
Tue 2021-08-03 16:11:24.219: [356133] *  P=000 S=000 D=ciputra.com TTL=(59) 
MX=[ciputra-com.mail.protection.outlook.com]
Tue 2021-08-03 16:11:24.219: [356133] Attempting SMTP connection to 
ciputra-com.mail.protection.outlook.com
Tue 2021-08-03 16:11:24.220: [356133] Resolving A record for 
ciputra-com.mail.protection.outlook.com (DNS Server: 202.158.38.162)...
Tue 2021-08-03 16:11:24.226: [356133] *  
D=ciputra-com.mail.protection.outlook.com TTL=(0) A=[104.47.125.36]
Tue 2021-08-03 16:11:24.226: [356133] *  
D=ciputra-com.mail.protection.outlook.com TTL=(0) A=[104.47.126.36]
Tue 2021-08-03 16:11:24.226: [356133] Randomly picked 104.47.126.36 from list 
of possible hosts
Tue 2021-08-03 16:11:24.226: [356133] Attempting SMTP connection to 
104.47.126.36:25
Tue 2021-08-03 16:11:24.226: [356133] Waiting for socket connection...
Tue 2021-08-03 16:11:24.311: [356133] *  Connection established 
172.16.10.10:49275 --> 104.47.126.36:25
Tue 2021-08-03 16:11:24.311: [356133] Waiting for protocol to start...
Tue 2021-08-03 16:11:24.450: [356133] <-- 220 
PU1APC01FT113.mail.protection.outlook.com Microsoft ESMTP MAIL Service ready at 
Tue, 3 Aug 2021 09:11:24 +0000
Tue 2021-08-03 16:11:24.450: [356133] --> EHLO mail.ciputra.co.id
Tue 2021-08-03 16:11:24.531: [356133] <-- 
250-PU1APC01FT113.mail.protection.outlook.com Hello [202.145.11.231]
Tue 2021-08-03 16:11:24.531: [356133] <-- 250-SIZE 157286400
Tue 2021-08-03 16:11:24.531: [356133] <-- 250-PIPELINING
Tue 2021-08-03 16:11:24.531: [356133] <-- 250-DSN
Tue 2021-08-03 16:11:24.531: [356133] <-- 250-ENHANCEDSTATUSCODES
Tue 2021-08-03 16:11:24.531: [356133] <-- 250-STARTTLS
Tue 2021-08-03 16:11:24.531: [356133] <-- 250-8BITMIME
Tue 2021-08-03 16:11:24.531: [356133] <-- 250-BINARYMIME
Tue 2021-08-03 16:11:24.531: [356133] <-- 250-CHUNKING
Tue 2021-08-03 16:11:24.531: [356133] <-- 250 SMTPUTF8
Tue 2021-08-03 16:11:24.531: [356133] --> STARTTLS
Tue 2021-08-03 16:11:24.612: [356133] <-- 220 2.0.0 SMTP server ready
Tue 2021-08-03 16:11:24.832: [356133] SSL negotiation successful (TLS 1.2, 384 
bit key exchange, 256 bit AES encryption)
Tue 2021-08-03 16:11:24.833: [356133] SSL certificate is valid (matches 
ciputra-com.mail.protection.outlook.com and is signed by recognized CA)
Tue 2021-08-03 16:11:24.833: [356133] --> EHLO mail.ciputra.co.id
Tue 2021-08-03 16:11:24.914: [356133] <-- 
250-PU1APC01FT113.mail.protection.outlook.com Hello [202.145.11.231]
Tue 2021-08-03 16:11:24.914: [356133] <-- 250-SIZE 157286400
Tue 2021-08-03 16:11:24.914: [356133] <-- 250-PIPELINING
Tue 2021-08-03 16:11:24.914: [356133] <-- 250-DSN
Tue 2021-08-03 16:11:24.914: [356133] <-- 250-ENHANCEDSTATUSCODES
Tue 2021-08-03 16:11:24.914: [356133] <-- 250-8BITMIME
Tue 2021-08-03 16:11:24.914: [356133] <-- 250-BINARYMIME
Tue 2021-08-03 16:11:24.914: [356133] <-- 250-CHUNKING
Tue 2021-08-03 16:11:24.914: [356133] <-- 250 SMTPUTF8
Tue 2021-08-03 16:11:24.914: [356133] --> MAIL 
From:<indonesiaenquir...@ap.jll.com> SIZE=201751
Tue 2021-08-03 16:11:25.001: [356133] <-- 250 2.1.0 Sender OK
Tue 2021-08-03 16:11:25.001: [356133] --> RCPT To:<dani.yuna...@ciputra.com>
Tue 2021-08-03 16:11:25.083: [356133] <-- 250 2.1.5 Recipient OK
Tue 2021-08-03 16:11:25.083: [356133] --> DATA
Tue 2021-08-03 16:11:25.165: [356133] <-- 354 Start mail input; end with 
<CRLF>.<CRLF>
Tue 2021-08-03 16:11:25.165: [356133] Sending 
<d:\mdaemon\queues\remote\pd50006568587.msg> to [104.47.126.36]
Tue 2021-08-03 16:11:25.792: [356133] Transfer Complete
Tue 2021-08-03 16:11:26.308: [356133] <-- 451 4.7.500 Server busy. Please try 
again later from [202.145.11.231]. (S77719) 
[PU1APC01FT113.eop-APC01.prod.protection.outlook.com]
Tue 2021-08-03 16:11:26.308: [356133] --> QUIT
Tue 2021-08-03 16:11:26.391: [356133] <-- 221 2.0.0 Service closing 
transmission channel
Tue 2021-08-03 16:11:26.392: [356133] *  This message is 0 minutes old; it has 
60 minutes left in this queue
Tue 2021-08-03 16:11:26.392: [356133] SMTP session terminated (Bytes in/out: 
829/206550)
Tue 2021-08-03 16:11:26.392: ----------

Tue 2021-08-03 08:00:28.540: [335692] Session 335692; child 0002
Tue 2021-08-03 08:00:28.540: [335692] Parsing message 
<d:\mdaemon\queues\remote\pd50006567574.msg>
Tue 2021-08-03 08:00:28.543: [335692] *  Forwarded from: 
athanasius.media...@ciputra.co.id
Tue 2021-08-03 08:00:28.543: [335692] *  From: trainingciput...@ciputra.com
Tue 2021-08-03 08:00:28.543: [335692] *  To: perezchave...@gmail.com
Tue 2021-08-03 08:00:28.543: [335692] *  Subject: HAPPY BIRTHDAY Andrew William 
Indradjaja
Tue 2021-08-03 08:00:28.543: [335692] *  Size (bytes): 15959
Tue 2021-08-03 08:00:28.543: [335692] *  Message-ID: 
<si2pr03mb6166b64e0f6f29ab55337a0b84...@si2pr03mb6166.apcprd03.prod.outlook.com>
Tue 2021-08-03 08:00:28.545: [335692] Resolving MX record for gmail.com (DNS 
Server: 202.158.38.162)...
Tue 2021-08-03 08:00:28.549: [335692] *  P=005 S=004 D=gmail.com TTL=(35) 
MX=[gmail-smtp-in.l.google.com]
Tue 2021-08-03 08:00:28.549: [335692] *  P=010 S=002 D=gmail.com TTL=(35) 
MX=[alt1.gmail-smtp-in.l.google.com]
Tue 2021-08-03 08:00:28.549: [335692] *  P=020 S=001 D=gmail.com TTL=(35) 
MX=[alt2.gmail-smtp-in.l.google.com]
Tue 2021-08-03 08:00:28.549: [335692] *  P=030 S=003 D=gmail.com TTL=(35) 
MX=[alt3.gmail-smtp-in.l.google.com]
Tue 2021-08-03 08:00:28.549: [335692] *  P=040 S=000 D=gmail.com TTL=(35) 
MX=[alt4.gmail-smtp-in.l.google.com]
Tue 2021-08-03 08:00:28.549: [335692] Attempting SMTP connection to 
gmail-smtp-in.l.google.com
Tue 2021-08-03 08:00:28.550: [335692] Resolving A record for 
gmail-smtp-in.l.google.com (DNS Server: 202.158.38.162)...
Tue 2021-08-03 08:00:28.637: [335692] *  D=gmail-smtp-in.l.google.com TTL=(3) 
A=[108.177.97.27]
Tue 2021-08-03 08:00:28.637: [335692] Attempting SMTP connection to 
108.177.97.27:25
Tue 2021-08-03 08:00:28.637: [335692] Waiting for socket connection...
Tue 2021-08-03 08:00:28.701: [335692] *  Connection established 
172.16.10.10:51479 --> 108.177.97.27:25
Tue 2021-08-03 08:00:28.701: [335692] Waiting for protocol to start...
Tue 2021-08-03 08:00:29.401: [335692] <-- 220 mx.google.com ESMTP 
b21si8627368pfv.319 - gsmtp
Tue 2021-08-03 08:00:29.401: [335692] --> EHLO mail.ciputra.co.id
Tue 2021-08-03 08:00:29.588: [335692] <-- 250-mx.google.com at your service, 
[202.145.11.231]
Tue 2021-08-03 08:00:29.588: [335692] <-- 250-SIZE 157286400
Tue 2021-08-03 08:00:29.588: [335692] <-- 250-8BITMIME
Tue 2021-08-03 08:00:29.588: [335692] <-- 250-STARTTLS
Tue 2021-08-03 08:00:29.588: [335692] <-- 250-ENHANCEDSTATUSCODES
Tue 2021-08-03 08:00:29.588: [335692] <-- 250-PIPELINING
Tue 2021-08-03 08:00:29.588: [335692] <-- 250-CHUNKING
Tue 2021-08-03 08:00:29.588: [335692] <-- 250 SMTPUTF8
Tue 2021-08-03 08:00:29.588: [335692] --> STARTTLS
Tue 2021-08-03 08:00:29.770: [335692] <-- 220 2.0.0 Ready to start TLS
Tue 2021-08-03 08:00:29.831: [335692] SSL negotiation successful (TLS 1.2, 256 
bit key exchange, 128 bit AES encryption)
Tue 2021-08-03 08:00:29.835: [335692] SSL certificate is valid (matches 
gmail-smtp-in.l.google.com and is signed by recognized CA)
Tue 2021-08-03 08:00:29.835: [335692] --> EHLO mail.ciputra.co.id
Tue 2021-08-03 08:00:30.018: [335692] <-- 250-mx.google.com at your service, 
[202.145.11.231]
Tue 2021-08-03 08:00:30.018: [335692] <-- 250-SIZE 157286400
Tue 2021-08-03 08:00:30.018: [335692] <-- 250-8BITMIME
Tue 2021-08-03 08:00:30.018: [335692] <-- 250-ENHANCEDSTATUSCODES
Tue 2021-08-03 08:00:30.018: [335692] <-- 250-PIPELINING
Tue 2021-08-03 08:00:30.018: [335692] <-- 250-CHUNKING
Tue 2021-08-03 08:00:30.018: [335692] <-- 250 SMTPUTF8
Tue 2021-08-03 08:00:30.019: [335692] --> MAIL 
From:<trainingciput...@ciputra.com> SIZE=15959
Tue 2021-08-03 08:00:30.206: [335692] <-- 250 2.1.0 OK b21si8627368pfv.319 - 
gsmtp
Tue 2021-08-03 08:00:30.206: [335692] --> RCPT To:<perezchave...@gmail.com>
Tue 2021-08-03 08:00:30.864: [335692] <-- 250 2.1.5 OK b21si8627368pfv.319 - 
gsmtp
Tue 2021-08-03 08:00:30.864: [335692] --> DATA
Tue 2021-08-03 08:00:31.047: [335692] <-- 354  Go ahead b21si8627368pfv.319 - 
gsmtp
Tue 2021-08-03 08:00:31.047: [335692] Sending 
<d:\mdaemon\queues\remote\pd50006567574.msg> to [108.177.97.27]
Tue 2021-08-03 08:00:31.048: [335692] Transfer Complete
Tue 2021-08-03 08:00:31.623: [335692] <-- 550-5.7.26 This message does not have 
authentication information or fails to
Tue 2021-08-03 08:00:31.623: [335692] <-- 550-5.7.26 pass authentication 
checks. To best protect our users from spam, the
Tue 2021-08-03 08:00:31.623: [335692] <-- 550-5.7.26 message has been blocked. 
Please visit
Tue 2021-08-03 08:00:31.623: [335692] <-- 550-5.7.26  
https://support.google.com/mail/answer/81126#authentication for more
Tue 2021-08-03 08:00:31.623: [335692] <-- 550 5.7.26 information. 
b21si8627368pfv.319 - gsmtp
Tue 2021-08-03 08:00:31.623: [335692] --> QUIT
Tue 2021-08-03 08:00:31.623: [335692] This is a forwarded (redirected) message, 
it will be moved to the bad message queue.
Tue 2021-08-03 08:00:31.629: [335692] Socket connection closed by the other 
side (how rude!)
Tue 2021-08-03 08:00:31.629: [335692] SMTP session terminated (Bytes in/out: 
881/16385)
Tue 2021-08-03 08:00:31.629: ----------

Mohon pencerahannya Pak. Terima kasih.

Best Regards,

Bonar Gultom

--
--[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 mdaemon-l-subscr...@dutaint.com
Henti Langgan: Kirim mail ke mdaemon-l-unsubscr...@dutaint.com
Versi terakhir: MDaemon 21.0.2, SecurityGateway 8.0.1

Kirim email ke