Semangat pagi Pak Syafril..

Tue 2018-09-18 22:09:33.487: [516141] Session 516141; child 0002
Tue 2018-09-18 22:09:33.487: [516141] Accepting SMTP connection from 
64.239.137.227:28373 to 172.16.0.6:25
Tue 2018-09-18 22:09:33.488: [516141] --> 220 bb.ptbmi.com ESMTP MDaemon 
18.0.2; Tue, 18 Sep 2018 22:09:33 +0700
Tue 2018-09-18 22:09:33.694: [516141] <-- EHLO SWF-EXCH-01.southwindfoods.com
Tue 2018-09-18 22:09:33.694: [516141] Performing SPF lookup 
(SWF-EXCH-01.southwindfoods.com / 64.239.137.227)
Tue 2018-09-18 22:09:35.059: [516141] *  Result: none; no SPF record in DNS
Tue 2018-09-18 22:09:35.059: [516141] ---- End SPF results
Tue 2018-09-18 22:09:35.059: [516141] --> 250-bb.ptbmi.com Hello 
SWF-EXCH-01.southwindfoods.com [64.239.137.227], pleased to meet you
Tue 2018-09-18 22:09:35.059: [516141] --> 250-ETRN
Tue 2018-09-18 22:09:35.059: [516141] Location Screening hiding AUTH from 
country United States
Tue 2018-09-18 22:09:35.059: [516141] --> 250-8BITMIME
Tue 2018-09-18 22:09:35.059: [516141] --> 250-ENHANCEDSTATUSCODES
Tue 2018-09-18 22:09:35.059: [516141] --> 250-STARTTLS
Tue 2018-09-18 22:09:35.059: [516141] --> 250 SIZE 35840000
Tue 2018-09-18 22:09:35.253: [516141] <-- STARTTLS
Tue 2018-09-18 22:09:35.253: [516141] --> 220 2.7.0 Ready to start TLS
Tue 2018-09-18 22:09:35.667: [516141] SSL negotiation successful (TLS 1.2, 384 
bit key exchange, 256 bit AES encryption)
Tue 2018-09-18 22:09:35.865: [516141] <-- EHLO SWF-EXCH-01.southwindfoods.com
Tue 2018-09-18 22:09:35.865: [516141] Performing SPF lookup 
(SWF-EXCH-01.southwindfoods.com / 64.239.137.227)
Tue 2018-09-18 22:09:36.386: [516141] *  Result: none; no SPF record in DNS
Tue 2018-09-18 22:09:36.386: [516141] ---- End SPF results
Tue 2018-09-18 22:09:36.387: [516141] --> 250-bb.ptbmi.com Hello 
SWF-EXCH-01.southwindfoods.com [64.239.137.227], pleased to meet you
Tue 2018-09-18 22:09:36.387: [516141] --> 250-ETRN
Tue 2018-09-18 22:09:36.387: [516141] Location Screening hiding AUTH from 
country United States
Tue 2018-09-18 22:09:36.387: [516141] --> 250-8BITMIME
Tue 2018-09-18 22:09:36.387: [516141] --> 250-ENHANCEDSTATUSCODES
Tue 2018-09-18 22:09:36.387: [516141] --> 250 SIZE 35840000
Tue 2018-09-18 22:09:36.581: [516141] <-- MAIL 
FROM:<[email protected]> SIZE=15053
Tue 2018-09-18 22:09:36.584: [516141] Performing PTR lookup 
(227.137.239.64.IN-ADDR.ARPA)
Tue 2018-09-18 22:09:36.619: [516141] *  D=227.137.239.64.in-addr.arpa 
TTL=(231) PTR=[mail.southwindfoods.com]
Tue 2018-09-18 22:09:36.866: [516141] *  D=mail.southwindfoods.com TTL=(239) 
A=[64.239.137.227]
Tue 2018-09-18 22:09:36.866: [516141] ---- End PTR results
Tue 2018-09-18 22:09:36.867: [516141] Performing IP lookup 
(SWF-EXCH-01.southwindfoods.com)
Tue 2018-09-18 22:09:37.408: [516141] *  DNS server reports domain name unknown
Tue 2018-09-18 22:09:37.408: [516141] ---- End IP lookup results
Tue 2018-09-18 22:09:37.408: [516141] --> 501 5.7.0 
SWF-EXCH-01.southwindfoods.com host can't be resolved
Tue 2018-09-18 22:09:37.409: [516141] SMTP session terminated (Bytes in/out: 
632/4053)
Tue 2018-09-18 22:09:37.409: ----------

Penyebab Domain Name unkown apa ya pak?

Penyelesaiannya bagaimana ya pak?


Mohon pencerahan..

Thanks
Suzy
--
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