>
>
> > 2. Tanggal 13 Juli lalu, user saya menggunakan gmail untuk kirim email
> ke email
> > kantor kami, dan tulisan reportnya seperti ini :
> > 501 5.7.0 209.85.222.50 does not have valid PTR record.
>
>
> >Kelihatannya ada problem DNS resolver, untuk memastikan maka cari
> transaksi
> >tolakkannya di smtp-in log.
>
> >Cara mencari transaksi dari log bisa lihat disini
>
> >
> https://mdaemonid.blogspot.com/2020/05/mencari-transaksi-mdaemon-dari-log.html
>
> Ini Hasil lognya :
Mon 2020-07-13 14:45:56.438: 02: <-- MAIL FROM:<[email protected]>
SIZE=199401
Mon 2020-07-13 14:45:56.438: 05: Performing PTR lookup
(50.222.85.209.IN-ADDR.ARPA)
Mon 2020-07-13 14:46:56.444: 04: *  DNS: 60 second wait for DNS response
exceeded (DNS Server: 203.142.84.222)
Mon 2020-07-13 14:47:56.450: 04: *  DNS: 60 second wait for DNS response
exceeded (DNS Server: 203.142.82.222)
Mon 2020-07-13 14:47:56.450: 05: *  No PTR records found
Mon 2020-07-13 14:47:56.450: 05: *  MDaemon configured to drop connection
when no PTR records found
Mon 2020-07-13 14:47:56.450: 05: ---- End PTR results
Mon 2020-07-13 14:47:56.450: 03: --> 501 5.7.0 209.85.222.50 does not have
valid PTR record
Mon 2020-07-13 14:47:56.450: 04: SMTP session terminated (Bytes in/out:
850/1985)
Mon 2020-07-13 14:47:56.450: 01: ----------
Mon 2020-07-13 14:48:08.253: 05: Session 124491; child 0009
Mon 2020-07-13 14:48:08.253: 05: Accepting SMTP connection from
193.56.28.160:24295 to 203.142.69.54:25
Mon 2020-07-13 14:48:08.256: 03: --> 220 email.rimaugroup.com ESMTP Mon, 13
Jul 2020 14:48:08 +0700
Mon 2020-07-13 14:48:08.470: 02: <-- EHLO User
Mon 2020-07-13 14:48:08.471: 03: --> 550 5.7.1 Sender unknown
Mon 2020-07-13 14:48:08.471: 01: Host screening refused connection to
172.16.170.5:25 from User [193.56.28.160:24295] (matched to line "all user
refuse")
Mon 2020-07-13 14:48:08.478: 04: SMTP session terminated (Bytes in/out:
11/90)
Mon 2020-07-13 14:48:08.478: 01: ----------
Mon 2020-07-13 14:47:46.350: 05: Session 124488; child 0009
Mon 2020-07-13 14:47:46.350: 05: Accepting SMTP connection from
36.77.242.249:51256 to 203.142.69.54:465
Mon 2020-07-13 14:47:46.396: 01: SSL negotiation successful (TLS 1.2, 384
bit key exchange, 256 bit AES encryption)
Mon 2020-07-13 14:47:46.397: 03: --> 220 email.rimaugroup.com ESMTP Mon, 13
Jul 2020 14:47:46 +0700
Mon 2020-07-13 14:47:46.496: 02: <-- EHLO NTSWFEN2
Mon 2020-07-13 14:47:46.497: 03: --> 250-email.rimaugroup.com Hello
NTSWFEN2 [36.77.242.249], pleased to meet you
Mon 2020-07-13 14:47:46.497: 03: --> 250-ETRN
Mon 2020-07-13 14:47:46.497: 03: --> 250-AUTH LOGIN PLAIN
Mon 2020-07-13 14:47:46.497: 03: --> 250-8BITMIME
Mon 2020-07-13 14:47:46.497: 03: --> 250-ENHANCEDSTATUSCODES
Mon 2020-07-13 14:47:46.497: 03: --> 250 SIZE 25600000
Mon 2020-07-13 14:47:46.509: 02: <-- AUTH LOGIN
Mon 2020-07-13 14:47:46.509: 03: --> 334 VXNlcm5hbWU6
Mon 2020-07-13 14:47:46.521: 02: <-- ZmVuZmVuQHJpbWF1Z3JvdXAuY29t
Mon 2020-07-13 14:47:46.521: 03: --> 334 UGFzc3dvcmQ6

Terima kasih pak

-- 
--[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 20.0.0, SecurityGateway 6.5.2

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