Hello Chin

You need to make sure that there is a communication between FlinkISO server and your SMTP server and firewall is not blocking any port which is required. Timeout error generally means that FlinkISO server is trying to connect your SMTP server but is not getting any response. 

FlinkISO Team

Hi FlinkISO Team,

It appears that there are and were communication between the FlinkISO server and my SMTP server and the firewall is not blocking any port which is required but the same error persist. I ran some tests, perhaps these would be some help:

vboxuser@vboxuser:~$ nc -vz mail.picengineering.com.my 465
Connection to mail.picengineering.com.my ([ip address]) 465 port [tcp/submissions] succeeded!
vboxuser@vboxuser:~$ openssl s_client -connect mail.picengineering.com.my:465 -servername mail.picengineering.com.my
CONNECTED(00000003)
depth=2 C = US, O = Internet Security Research Group, CN = ISRG Root X1
verify return:1
depth=1 C = US, O = Let's Encrypt, CN = R13
verify return:1
depth=0 CN = mail.picengineering.com.my
verify return:1
---
Certificate chain
0 s:CN = mail.picengineering.com.my
  i:C = US, O = Let's Encrypt, CN = R13
  a:PKEY: rsaEncryption, 2048 (bit); sigalg: RSA-SHA256
  v:NotBefore: Apr 20 01:58:22 2026 GMT; NotAfter: Jul 19 01:58:21 2026 GMT
1 s:C = US, O = Let's Encrypt, CN = R13
  i:C = US, O = Internet Security Research Group, CN = ISRG Root X1
  a:PKEY: rsaEncryption, 2048 (bit); sigalg: RSA-SHA256
  v:NotBefore: Mar 13 00:00:00 2024 GMT; NotAfter: Mar 12 23:59:59 2027 GMT
---
Server certificate
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
subject=CN = mail.picengineering.com.my
issuer=C = US, O = Let's Encrypt, CN = R13
---
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: RSA
Server Temp Key: ECDH, prime256v1, 256 bits
---
SSL handshake has read 3221 bytes and written 454 bytes
Verification: OK
---
New, TLSv1.2, Cipher is ECDHE-RSA-AES256-GCM-SHA384
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
   Protocol  : TLSv1.2
   Cipher    : ECDHE-RSA-AES256-GCM-SHA384
   Session-ID: [session id]
   Session-ID-ctx:
   Master-Key: [Master-key]
   PSK identity: None
   PSK identity hint: None
   SRP username: None
   Start Time: 1781317494
   Timeout   : 7200 (sec)
   Verify return code: 0 (ok)
   Extended master secret: no
---
220-nsv58.dnshostmaster.net ESMTP Exim 4.99.4 #2 Sat, 13 Jun 2026 10:24:54 +0800
220-We do not authorize the use of this system to transport unsolicited,
220 and/or bulk e-mail.
EHLO test
250-nsv58.dnshostmaster.net Hello test [180.75.19.106]
250-SIZE 52428800
250-LIMITS MAILMAX=1000 RCPTMAX=50000
250-8BITMIME
250-PIPELINING
250-PIPECONNECT
250-AUTH PLAIN LOGIN
250 HELP
AUTH LOGIN
334 VXNlcm5hbWU6
[email address in base64]
334 UGFzc3dvcmQ6
[email password in base64]
235 Authentication succeeded

Hello Liew Seng Chin

From the array below:

public $fast = array(
               "from" => "[email protected]",
               "sender" => null,
               "to" => null,
               "cc" => null,
               "bcc" => null,
               "replyTo" => null,
               "readReceipt" => null,
               "returnPath" => null,
               "messageId" => true,
               "subject" => null,
               "message" => null,
               "headers" => null,
               "viewRender" => null,
               "template" => false,
               "layout" => false,
               "viewVars" => null,
               "attachments" => null,
               "emailFormat" => null,
               "transport" => "Smtp",
               "host" => "mail.picengineering.com.my",
               "port" => 465,
               "timeout" => 30,
               "username" => "[email protected]",
               "password" => "*******",
               "client" => null,
               "log" => true,
               "tls" => true,
               //"charset" => "utf-8",
               //"headerCharset" => "utf-8",
       );

remove all the keys that are empty, null or you are not using and then try again. 

FlinkISO Team

Dear FlinkISO Team,

Good day, I have done as requested but nothing seemed to have change.

Current configuration of email.php: 

class EmailConfig {

       public $default = array(
               "transport" => "Mail",
               "from" => array("[email protected]" => "FlinkISO"),
               //"charset" => "utf-8",
               //"headerCharset" => "utf-8",
       );

       public $smtp = array(

               "transport" => "Smtp",
               "from" => array("[email protected]" => "FlinkISO"),
               "host" => "mail.picengineering.com.my",
               "port" => 465,
               "timeout" => 30,
               "username" => "[email protected]",
               "password" => "sbx=A_5h{_Lf",
//              "client" => null,
//              "log" => true,
               "tls" => true,
       );

       public $fast = array(
               "from" => "[email protected]",
//              "sender" => null,
//              "to" => null,
//              "cc" => null,
//              "bcc" => null,
//              "replyTo" => null,
//              "readReceipt" => null,
//              "returnPath" => null,
               "messageId" => true,
//              "subject" => null,
//              "message" => null,
//              "headers" => null,
//              "viewRender" => null,
               "template" => false,
               "layout" => false,
//              "viewVars" => null,
//              "attachments" => null,
//              "emailFormat" => null,
               "transport" => "Smtp",
               "host" => "mail.picengineering.com.my",
               "port" => 465,
               "timeout" => 30,
               "username" => "[email protected]",
               "password" => "sbx=A_5h{_Lf",
//              "client" => null,
//              "log" => true,
               "tls" => true,
               //"charset" => "utf-8",
               //"headerCharset" => "utf-8",
       );

}
?>

Error message from the website:
SocketException: SMTP timeout. in /var/www/html/flinkiso/lib/Cake/Network/Email/SmtpTransport.php:362
Stack trace:
#0 /var/www/html/flinkiso/lib/Cake/Network/Email/SmtpTransport.php(149): SmtpTransport->_smtpSend()
#1 /var/www/html/flinkiso/lib/Cake/Network/Email/SmtpTransport.php(86): SmtpTransport->_connect()
#2 /var/www/html/flinkiso/lib/Cake/Network/Email/CakeEmail.php(1183): SmtpTransport->send()
#3 /var/www/html/flinkiso/app/Controller/SettingsController.php(165): CakeEmail->send()
#4 [internal function]: SettingsController->smtp_details()
#5 /var/www/html/flinkiso/lib/Cake/Controller/Controller.php(500): ReflectionMethod->invokeArgs()
#6 /var/www/html/flinkiso/lib/Cake/Routing/Dispatcher.php(193): Controller->invokeAction()
#7 /var/www/html/flinkiso/lib/Cake/Routing/Dispatcher.php(167): Dispatcher->_invoke()
#8 /var/www/html/flinkiso/app/webroot/index.php(115): Dispatcher->dispatch()
#9 {main}
 

The tmp/logs/error.log file remains empty.

Hello Liew

Remove all the array keys which are not used, don't just comment. If issue exists, either consult your network administrator or email service provider as FlinkISO only attempts to authenticate with the array values passed, rest of the actions are beyond application's control.

FlinkISO Team