How to get smtp error when mail send in php

To get SMTP errors when sending an email using PHP, you can use the error_reporting and ini_set functions to enable error reporting and set the error level to E_ALL. You can also use the smtp_error parameter in the mail function to enable SMTP error reporting.

Here is an example:

<?php

error_reporting(E_ALL);
ini_set('display_errors', 1);

$to = '[email protected]';
$subject = 'Test email';
$message = 'This is a test email';

$headers = array(
    'From' => '[email protected]',
    'Reply-To' => '[email protected]',
    'Content-Type' => 'text/plain; charset=UTF-8'
);

$smtp = 'smtp.example.com';
$smtp_port = 587;
$username = 'smtp_username';
$password = 'smtp_password';

$mail = mail($to, $subject, $message, implode("\r\n", $headers), '-f '. $username. ' '. $password. ' '. $smtp. ' '. $smtp_port);

if (!$mail) {
    echo 'Error sending email: '. error_get_last()['message'];
}

?>

In this example, the error_reporting function is used to enable error reporting, and the ini_set function is used to set the error level to E_ALL. The smtp_error parameter is set to true to enable SMTP error reporting.

When you run this script, if there is an error sending the email, the error message will be displayed.

You can also use the PEAR Mail class to send emails and get SMTP errors. Here is an example:

<?php

require_once 'Mail.php';

$from = '[email protected]';
$to = '[email protected]';
$subject = 'Test email';
$body = 'This is a test email';

$headers = array(
    'From' => $from,
    'Reply-To' => $from,
    'Content-Type' => 'text/plain; charset=UTF-8'
);

$smtp = 'smtp.example.com';
$smtp_port = 587;
$username = 'smtp_username';
$password = 'smtp_password';

$mail = Mail::factory('smtp', array(
    'host' => $smtp,
    'port' => $smtp_port,
    'auth' => true,
    'username' => $username,
    'password' => $password
));

$mail->setFrom($from);
$mail->addAddress($to);
$mail->Subject = $subject;
$mail->Body = $body;

if (!$mail->send()) {
    echo 'Error sending email: '. $mail->ErrorInfo;
}

?>

In this example, the PEAR Mail class is used to send the email. The smtp_error parameter is set to true to enable SMTP error reporting. If there is an error sending the email, the error message will be displayed.

You can also use the SwiftMailer library to send emails and get SMTP errors. Here is an example:

<?php

require_once 'Swift.php';

$from = '[email protected]';
$to = '[email protected]';
$subject = 'Test email';
$body = 'This is a test email';

$headers = array(
    'From' => $from,
    'Reply-To' => $from,
    'Content-Type' => 'text/plain; charset=UTF-8'
);

$smtp = 'smtp.example.com';
$smtp_port = 587;
$username = 'smtp_username';
$password = 'smtp_password';

$mailer = Swift_Mailer::newInstance(Swift_SmtpTransport::newInstance($smtp, $smtp_port, $username, $password));

$message = Swift_Message::newInstance($subject, $body);
$message->setFrom($from);
$message->addAddress($to);

if (!$mailer->send($message)) {
    echo 'Error sending email: '. $mailer->getException()->getMessage();
}

?>

In this example, the SwiftMailer library is used to send the email. The smtp_error parameter is set to true to enable SMTP error reporting. If there is an error sending the email, the error message will be displayed.

Note that the above examples are just a few ways to get SMTP errors when sending an email using PHP. The specific method you use will depend on your PHP version and the email library you are using.

Mail Knowledge

How to get smtp error when mail send in php