Dear Pak Syafril,
Mohon bantuanya.
Ada salah satu client saya yang menerima email bounced sampai 1000an per hari
Dibawah ini, saya kirimkan SMTP-out-Log.nya.

Sat 2017-04-08 23:59:53.008: Session 484689; child 0027Sat 2017-04-08 
23:59:53.008: Parsing message <c:\mdaemon\queues\remote\pd35000477935.msg>Sat 
2017-04-08 23:59:53.009: * From: [email protected] 2017-04-08 23:59:53.009: * 
To: [email protected] 2017-04-08 23:59:53.009: * Subject: 
[email protected], complete account deactivationSat 2017-04-08 
23:59:53.009: * Size (bytes): 8002Sat 2017-04-08 23:59:53.009: * Message-ID: 
<[email protected]>Sat 2017-04-08 
23:59:53.152: Resolving MX record for clc.cc.il.us (DNS Server: 
116.66.206.66)...Sun 2017-04-09 00:00:54.227: * DNS server reports that it is 
having technical problemsSun 2017-04-09 00:00:54.227: * MX lookup must be tried 
again laterSun 2017-04-09 00:00:54.228: * This message is 1 minutes old; it has 
0 minutes left in this queueSun 2017-04-09 00:00:54.232: Remote queue lifetime 
exceeded; message placed in retry queueSun 2017-04-09 00:00:54.232: SMTP 
session terminated (Bytes in/out: 0/0)Sun 2017-04-09 00:00:54.232: 
----------Sun 2017-04-09 00:00:16.060: Session 484861; child 0019Sun 2017-04-09 
00:00:16.060: Parsing message <c:\mdaemon\queues\remote\pd35000478085.msg>Sun 
2017-04-09 00:00:16.062: * From: [email protected] 2017-04-09 00:00:16.062: * 
To: [email protected] 2017-04-09 00:00:16.062: * Subject: 
[email protected], complete account deactivationSun 2017-04-09 
00:00:16.062: * Size (bytes): 7976Sun 2017-04-09 00:00:16.062: * Message-ID: 
<[email protected]>Sun 2017-04-09 
00:00:16.084: Resolving MX record for handspring.com (DNS Server: 
116.66.206.66)...Sun 2017-04-09 00:00:54.339: * DNS server reports that it is 
having technical problemsSun 2017-04-09 00:00:54.339: * MX lookup must be tried 
again laterSun 2017-04-09 00:00:54.343: * This message is 0 minutes old; it has 
1 minutes left in this queueSun 2017-04-09 00:00:54.343: SMTP session 
terminated (Bytes in/out: 0/0)Sun 2017-04-09 00:00:54.343: ----------

Mohon bantuanya pak untuk menganalisa apakah penyebabnya, user sudah saya minta 
untuk ganti password.
Terima kasih atas bantuannya.

Salam,
Ali

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