dear Pak Syafril,

kami ada kendala pengiriman ke Gmail, error 550-5.7.26 message has been blocked

--- Session Transcript ---
 Tue 2020-08-04 11:20:15: Session 677698; child 0002  Tue 2020-08-04 11:20:15: 
Parsing message <xxxxxxxxxxxxxxxxxxxxxxxx\pd35000780775.msg>
 Tue 2020-08-04 11:20:15: *  From: ir...@mandau.id  Tue 2020-08-04 11:20:15: *  
To: irwa...@gmail.com  Tue 2020-08-04 11:20:15: *  Subject: gmail  Tue 
2020-08-04 11:20:15: *  Size (bytes): 29544  Tue 2020-08-04 11:20:15: *  
Message-ID: <00a401d66a0d$d7dca8d0$8795fa70$@mandau.id>
 Tue 2020-08-04 11:20:15: Attempting SMTP connection to [gmail.com]  Tue 
2020-08-04 11:20:15: Resolving MX records for [gmail.com] (DNS Server: 
203.142.82.222)...
 Tue 2020-08-04 11:20:15: *  P=005 S=001 D=gmail.com TTL=(37) 
MX=[gmail-smtp-in.l.google.com]  Tue 2020-08-04 11:20:15: *  P=010 S=000 
D=gmail.com TTL=(37) MX=[alt1.gmail-smtp-in.l.google.com]
 Tue 2020-08-04 11:20:15: *  P=020 S=002 D=gmail.com TTL=(37) 
MX=[alt2.gmail-smtp-in.l.google.com]
 Tue 2020-08-04 11:20:15: *  P=030 S=003 D=gmail.com TTL=(37) 
MX=[alt3.gmail-smtp-in.l.google.com]
 Tue 2020-08-04 11:20:15: *  P=040 S=004 D=gmail.com TTL=(37) 
MX=[alt4.gmail-smtp-in.l.google.com]
 Tue 2020-08-04 11:20:15: Attempting SMTP connection to 
[gmail-smtp-in.l.google.com:25]  Tue 2020-08-04 11:20:15: Resolving A record 
for [gmail-smtp-in.l.google.com] (DNS Server: 203.142.82.222)...
 Tue 2020-08-04 11:20:16: *  D=gmail-smtp-in.l.google.com TTL=(2) 
A=[172.217.194.26]  Tue 2020-08-04 11:20:16: Attempting SMTP connection to 
[172.217.194.26:25]  Tue 2020-08-04 11:20:16: Waiting for socket connection...
 Tue 2020-08-04 11:20:16: *  Connection established (117.102.89.155:2082 -> 
172.217.194.26:25)  Tue 2020-08-04 11:20:16: Waiting for protocol to start...
 Tue 2020-08-04 11:20:16: <-- 220 mx.google.com ESMTP v8si13018713ply.17 - 
gsmtp  Tue 2020-08-04 11:20:16: --> EHLO mail.mandau.id  Tue 2020-08-04 
11:20:16: <-- 250-mx.google.com at your service, [112.78.191.82]  Tue 
2020-08-04 11:20:16: <-- 250-SIZE 157286400  Tue 2020-08-04 11:20:16: <-- 
250-8BITMIME  Tue 2020-08-04 11:20:16: <-- 250-STARTTLS  Tue 2020-08-04 
11:20:16: <-- 250-ENHANCEDSTATUSCODES  Tue 2020-08-04 11:20:16: <-- 
250-PIPELINING  Tue 2020-08-04 11:20:16: <-- 250-CHUNKING  Tue 2020-08-04 
11:20:16: <-- 250 SMTPUTF8  Tue 2020-08-04 11:20:16: --> MAIL 
From:<ir...@mandau.id> SIZE=29544  Tue 2020-08-04 11:20:16: <-- 250 2.1.0 OK 
v8si13018713ply.17 - gsmtp  Tue 2020-08-04 11:20:16: --> RCPT 
To:<irwa...@gmail.com>  Tue 2020-08-04 11:20:17: <-- 250 2.1.5 OK 
v8si13018713ply.17 - gsmtp  Tue 2020-08-04 11:20:17: --> DATA  Tue 2020-08-04 
11:20:17: <-- 354  Go ahead v8si13018713ply.17 - gsmtp  Tue 2020-08-04 
11:20:17: Sending <xxxxxxxxxxxxxxxxxxxxxxxx\pd35000780775.msg> to 
[172.217.194.26]  Tue 2020-08-04 11:20:17: Transfer Complete  Tue 2020-08-04 
11:20:17: <-- 550-5.7.26 This message does not have authentication information 
or fails to  Tue 2020-08-04 11:20:17: <-- 550-5.7.26 pass authentication 
checks. To best protect our users from spam, the  Tue 2020-08-04 11:20:17: <-- 
550-5.7.26 message has been blocked. Please visit  Tue 2020-08-04 11:20:17: <-- 
550-5.7.26  https://support.google.com/mail/answer/81126#authentication for 
more  Tue 2020-08-04 11:20:17: <-- 550 5.7.26 information. v8si13018713ply.17 - 
gsmtp  Tue 2020-08-04 11:20:17: --> QUIT  Tue 2020-08-04 11:20:17: Attempting 
to send message to smart host  Tue 2020-08-04 11:20:17: Attempting SMTP 
connection to [smtp..biz.net.id:25]  Tue 2020-08-04 11:20:17: Resolving A 
record for [smtp..biz.net.id] (DNS Server: 203.142.82.222)...
 Tue 2020-08-04 11:21:02: *  DNS: 45 second wait for DNS response exceeded (DNS 
Server: 203.142.82.222)  Tue 2020-08-04 11:21:02: Attempting to send message to 
smart host  Tue 2020-08-04 11:21:02: Attempting SMTP connection to 
[smtp..biz.net.id:25]  Tue 2020-08-04 11:21:02: Resolving A record for 
[smtp..biz.net.id] (DNS Server: 203.142.84.222)...
 Tue 2020-08-04 11:21:02: *  D=biz.net.id TTL=(6) A=[202.169.33.202]  Tue 
2020-08-04 11:21:02: Attempting SMTP connection to [202.169.33.202:25]  Tue 
2020-08-04 11:21:02: *  202.169.33.202 in connection failure cache for up to 5 
minutes due to previous connection failure(s)  Tue 2020-08-04 11:21:02: 
Attempting SMTP connection to [alt1.gmail-smtp-in.l.google.com:25]
 Tue 2020-08-04 11:21:02: Resolving A record for 
[alt1.gmail-smtp-in.l.google.com] (DNS Server: 203.142.84.222)...
 Tue 2020-08-04 11:21:02: *  D=alt1.gmail-smtp-in.l.google.com TTL=(4) 
A=[74.125.28.26]  Tue 2020-08-04 11:21:02: Attempting SMTP connection to 
[74.125.28.26:25]  Tue 2020-08-04 11:21:02: Waiting for socket connection...
 Tue 2020-08-04 11:21:02: *  Connection established (117.102.89.155:2104 -> 
74.125.28.26:25)  Tue 2020-08-04 11:21:02: Waiting for protocol to start...
 Tue 2020-08-04 11:21:02: <-- 220 mx.google.com ESMTP h71si13922937pgc.228 - 
gsmtp  Tue 2020-08-04 11:21:02: --> EHLO mail.mandau.id  Tue 2020-08-04 
11:21:02: <-- 250-mx.google.com at your service, [112.78.191.82]  Tue 
2020-08-04 11:21:02: <-- 250-SIZE 157286400  Tue 2020-08-04 11:21:02: <-- 
250-8BITMIME  Tue 2020-08-04 11:21:02: <-- 250-STARTTLS  Tue 2020-08-04 
11:21:02: <-- 250-ENHANCEDSTATUSCODES  Tue 2020-08-04 11:21:02: <-- 
250-PIPELINING  Tue 2020-08-04 11:21:02: <-- 250-CHUNKING  Tue 2020-08-04 
11:21:02: <-- 250 SMTPUTF8  Tue 2020-08-04 11:21:02: --> MAIL 
From:<ir...@mandau.id> SIZE=29544  Tue 2020-08-04 11:21:02: <-- 250 2.1.0 OK 
h71si13922937pgc.228 - gsmtp  Tue 2020-08-04 11:21:02: --> RCPT 
To:<irwa...@gmail.com>  Tue 2020-08-04 11:21:03: <-- 250 2.1.5 OK 
h71si13922937pgc.228 - gsmtp  Tue 2020-08-04 11:21:03: --> DATA  Tue 2020-08-04 
11:21:03: <-- 354  Go ahead h71si13922937pgc.228 - gsmtp  Tue 2020-08-04 
11:21:03: Sending <xxxxxxxxxxxxxxxxxxxxxxxx\pd35000780775.msg> to 
[74.125.28.26]  Tue 2020-08-04 11:21:03: Transfer Complete  Tue 2020-08-04 
11:21:04: <-- 550-5.7.26 This message does not have authentication information 
or fails to  Tue 2020-08-04 11:21:04: <-- 550-5.7.26 pass authentication 
checks. To best protect our users from spam, the  Tue 2020-08-04 11:21:04: <-- 
550-5.7.26 message has been blocked. Please visit  Tue 2020-08-04 11:21:04: <-- 
550-5.7.26  https://support.google.com/mail/answer/81126#authentication for 
more  Tue 2020-08-04 11:21:04: <-- 550 5.7.26 information. h71si13922937pgc.228 
- gsmtp  Tue 2020-08-04 11:21:04: --> QUIT  Tue 2020-08-04 11:21:04: This 
message is 63 minutes old; it has 0 minutes left in this queue  Tue 2020-08-04 
11:21:04: Remote queue lifetime exceeded; message placed in retry queue
--- End Transcript ---

SPF domain kami mail.mandau.id:
v=spf1 +a +mx +ip4:112.78.191.82 +ip4:117.102.89.155 +ip4:198.46.134.245 
+ip4:184.170.148.5 +ip4:202.74.236.99 +ip4:202.74.238.130 +ip4:139.99.6.57 
+ip4:158.69.40.68 ~all

mohon pencerahan nya pak

terima kasih

Best Regards

IRWAN R. JAZIR
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