Sore Pak Syafril,
Mohon bantuan updatenya untuk log berikut :

Tue 2014-06-17 15:15:09: [710771] Accepting SMTP connection from [202.43.169.181:49209] to [113.11.130.172:25] Tue 2014-06-17 15:15:09: [710771] --> 220 mx.saranainstrument.com ESMTP MDaemon 14.0.2; Tue, 17 Jun 2014 15:15:09 +0700
Tue 2014-06-17 15:15:09: [710771] <-- EHLO athena.pixelhelix.com
Tue 2014-06-17 15:15:09: [710771] --> 250-mx.saranainstrument.com Hello athena.pixelhelix.com, pleased to meet you
Tue 2014-06-17 15:15:09: [710771] --> 250-ETRN
Tue 2014-06-17 15:15:09: [710771] --> 250-AUTH LOGIN CRAM-MD5 PLAIN
Tue 2014-06-17 15:15:09: [710771] --> 250-8BITMIME
Tue 2014-06-17 15:15:09: [710771] --> 250-STARTTLS
Tue 2014-06-17 15:15:09: [710771] --> 250 SIZE 15360000
Tue 2014-06-17 15:15:09: [710771] <-- STARTTLS
Tue 2014-06-17 15:15:09: [710771] --> 220 Begin TLS negotiation
Tue 2014-06-17 15:15:09: [710771] SSL negotiation successful (TLS 1.0, 1024 bit key exchange, 128 bit AES encryption)
Tue 2014-06-17 15:15:09: [710771] <-- EHLO athena.pixelhelix.com
Tue 2014-06-17 15:15:09: [710771] --> 250-mx.saranainstrument.com Hello athena.pixelhelix.com, pleased to meet you
Tue 2014-06-17 15:15:09: [710771] --> 250-ETRN
Tue 2014-06-17 15:15:09: [710771] --> 250-AUTH LOGIN CRAM-MD5 PLAIN
Tue 2014-06-17 15:15:09: [710771] --> 250-8BITMIME
Tue 2014-06-17 15:15:09: [710771] --> 250 SIZE 15360000
Tue 2014-06-17 15:15:09: [710771] <-- MAIL FROM:<sa...@saoda.co.id> SIZE=217752 Tue 2014-06-17 15:15:09: [710771] Performing PTR lookup (181.169.43.202.IN-ADDR.ARPA) Tue 2014-06-17 15:15:09: [710771] * D=181.169.43.202.IN-ADDR.ARPA TTL=(6) PTR=[ip-169-181.dtp.net.id]
Tue 2014-06-17 15:15:09: [710771] *  Gathering A records...
Tue 2014-06-17 15:15:18: [710771] *  No A records found
Tue 2014-06-17 15:15:18: [710771] * MDaemon configured to drop connection on PTR record miss-match
Tue 2014-06-17 15:15:18: [710771] ---- End PTR results
Tue 2014-06-17 15:15:18: [710771] --> 501 Domain must resolve
Tue 2014-06-17 15:15:18: [710771] SMTP session terminated (Bytes in/out: 711/1316)

Terima kasih.

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

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