Dear Pak Syafril,

Mohon bantuannya untuk menganalisa error ini?

Mon 2014-02-24 13:44:43: [433613] Session 433613; child 0003
Mon 2014-02-24 13:44:43: [433613] Accepting SMTP connection from [
103.7.225.129:11625] to [118.97.92.178:25]
Mon 2014-02-24 13:44:43: [433613] --> 220 mail.indokemika.co.id ESMTP
MDaemon 13.6.1; Mon, 24 Feb 2014 13:44:43 +0700
Mon 2014-02-24 13:44:43: [433613] <-- EHLO filter.samudera.com
Mon 2014-02-24 13:44:43: [433613] --> 250-mail.indokemika.co.id Hello
filter.samudera.com, pleased to meet you
Mon 2014-02-24 13:44:43: [433613] --> 250-ETRN
Mon 2014-02-24 13:44:43: [433613] --> 250-AUTH LOGIN CRAM-MD5 PLAIN
Mon 2014-02-24 13:44:43: [433613] --> 250-8BITMIME
Mon 2014-02-24 13:44:43: [433613] --> 250 SIZE
Mon 2014-02-24 13:44:43: [433613] <-- MAIL FROM:<[email protected]>
SIZE=6204 BODY=8BITMIME
Mon 2014-02-24 13:44:43: [433613] Performing PTR lookup
(129.225.7.103.IN-ADDR.ARPA)
Mon 2014-02-24 13:44:43: [433613] *  D=129.225.7.103.IN-ADDR.ARPA TTL=(336)
PTR=[filter.sig.co.id]
Mon 2014-02-24 13:44:43: [433613] *  Gathering A records...
Mon 2014-02-24 13:44:43: [433613] *  D=filter.sig.co.id TTL=(272)
A=[103.7.225.129]
Mon 2014-02-24 13:44:43: [433613] ---- End PTR results
Mon 2014-02-24 13:44:43: [433613] Performing IP lookup (filter.samudera.com)
Mon 2014-02-24 13:44:43: [433613] *  D=filter.samudera.com TTL=(143)
A=[103.7.225.129]
Mon 2014-02-24 13:44:43: [433613] ---- End IP lookup results
Mon 2014-02-24 13:44:43: [433613] Performing IP lookup (kmtc.sig.co.id)
Mon 2014-02-24 13:44:43: [433613] *  D=kmtc.sig.co.id TTL=(0)
A=[67.215.65.132]
Mon 2014-02-24 13:44:43: [433613] *  P=005 S=000 D=kmtc.sig.co.id TTL=(322)
MX=[filter.sig.co.id]
Mon 2014-02-24 13:44:43: [433613] *  D=kmtc.sig.co.id TTL=(0)
A=[67.215.65.132]
Mon 2014-02-24 13:44:43: [433613] ---- End IP lookup results
Mon 2014-02-24 13:44:43: [433613] --> 250 <[email protected]>, Sender
ok
Mon 2014-02-24 13:44:43: [433613] <-- RCPT TO:<[email protected]>
Mon 2014-02-24 13:44:43: [433613] --> 553 mail.indokemika.co.id does not
accept mail from [email protected]
Mon 2014-02-24 13:44:43: [433613] <-- RSET
Mon 2014-02-24 13:44:43: [433613] --> 250 RSET? Well, ok.
Mon 2014-02-24 13:44:43: [433613] <-- QUIT
Mon 2014-02-24 13:44:43: [433613] --> 221 See ya in cyberspace
Mon 2014-02-24 13:44:43: [433613] SMTP session terminated (Bytes in/out:
133/384)

Ini masalahnya di sisi pengirim atau sisi penerima ya? kalau sisi penerima,
saya harus tambahkan konfigurasi apa ya supaya tidak terjadi hal ini lagi?

Terima kasih
Rusdi

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