2013/11/13 Ahmad Ardiansyah <[email protected]>

> Pak Syafril,
>
> saya mendapat keluhan dari user kami didalam, dia mengaku bahwa kemarin
> kemarin dia masih bisa menerima email dari vendor luar @coship.com.
> tetapi saat ini dia tidak bisa menerima email dari domain tersebut. kira
> kira ini di karenakan apa ya pak? kok kadang bisa nerima dan terkadang
> tidak bisa menerima? mohon pencerahaannya
>

sepertinya ini pak log-nya di smtp-in :
Tue 2013-11-12 08:23:04: ----------
Tue 2013-11-12 08:23:05: [235770] Session 235770; child 0001
Tue 2013-11-12 08:23:05: [235770] Accepting SMTP connection from [
210.75.11.130:53583] to [202.146.0.67:25]
Tue 2013-11-12 08:23:05: [235770] --> 220 mail.kompas.tv ESMTP MDaemon
13.6.0; Tue, 12 Nov 2013 08:23:05 +0700
Tue 2013-11-12 08:23:05: [235770] <-- HELO omail.coship.com
Tue 2013-11-12 08:23:05: [235770] --> 250 mail.kompas.tv Hello
omail.coship.com, pleased to meet you
Tue 2013-11-12 08:23:06: [235770] <-- MAIL FROM: <[email protected]>
Tue 2013-11-12 08:23:06: [235770] Performing PTR lookup
(130.11.75.210.IN-ADDR.ARPA)
Tue 2013-11-12 08:23:07: [235770] *  Error: *  Name server reports domain
name unknown
Tue 2013-11-12 08:23:07: [235770] *  MDaemon configured to drop connection
when domain name unknown
Tue 2013-11-12 08:23:07: [235770] ---- End PTR results
Tue 2013-11-12 08:23:07: [235770] --> 501 Connecting IP must have valid PTR
record for 210.75.11.130
Tue 2013-11-12 08:23:07: [235770] SMTP session terminated (Bytes in/out:
57/202)
Tue 2013-11-12 08:23:07: ----------

apakah ptr harus di update?

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