Pak Syafril,
Mohon bantuan updatenya untuk log dibawah ini.

Wed 2013-08-14 14:55:34: [108616:2] Session 108616; child 2
Wed 2013-08-14 14:55:34: [108616:2] Accepting SMTP connection from [203.130.192.235:53079] to [113.11.130.172:25] Wed 2013-08-14 14:55:34: [108616:2] --> 220 mx.saranainstrument.com ESMTP MDaemon 13.0.5; Wed, 14 Aug 2013 14:55:34 +0700
Wed 2013-08-14 14:55:34: [108616:2] <-- EHLO mail02.tobapulp.com
Wed 2013-08-14 14:55:34: [108616:2] --> 250-mx.saranainstrument.com Hello mail02.tobapulp.com, pleased to meet you
Wed 2013-08-14 14:55:34: [108616:2] --> 250-ETRN
Wed 2013-08-14 14:55:34: [108616:2] --> 250-AUTH LOGIN CRAM-MD5 PLAIN
Wed 2013-08-14 14:55:34: [108616:2] --> 250-8BITMIME
Wed 2013-08-14 14:55:34: [108616:2] --> 250-STARTTLS
Wed 2013-08-14 14:55:34: [108616:2] --> 250 SIZE 15360000
Wed 2013-08-14 14:55:34: [108616:2] <-- MAIL FROM:<lumintan_gul...@tobapulp.com> SIZE=3698 Wed 2013-08-14 14:55:34: [108616:2] Performing PTR lookup (235.192.130.203.IN-ADDR.ARPA) Wed 2013-08-14 14:55:34: [108616:2] * D=235.192.130.203.IN-ADDR.ARPA TTL=(239) PTR=[mx.tobapulp.com]
Wed 2013-08-14 14:55:34: [108616:2] *  Gathering A records...
Wed 2013-08-14 14:55:36: [108616:2] * D=mx.tobapulp.com TTL=(1) A=[203.130.192.235]
Wed 2013-08-14 14:55:36: [108616:2] ---- End PTR results
Wed 2013-08-14 14:55:36: [108616:2] Performing IP lookup (mail02.tobapulp.com) Wed 2013-08-14 14:55:37: [108616:2] * Error: * Name server reports domain name unknown
Wed 2013-08-14 14:55:37: [108616:2] ---- End IP lookup results
Wed 2013-08-14 14:55:37: [108616:2] --> 501 <mail02.tobapulp.com> is invalid or DNS says does not exist Wed 2013-08-14 14:55:37: [108616:2] SMTP session terminated (Bytes in/out: 78/312)

Sebelumnya mereka masuk lancar2 saja. Kemungkinan mereka ganti server atau pindah tempat dan settingannya belum benar.

--
Regards,
*Yudis*
*IT Officer*
+62-21-5347855
Ext.321

--
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