In the context of PHP mail sending, what are some common reasons for delays in email delivery and how can they be addressed?

Common reasons for delays in email delivery in PHP mail sending include server misconfigurations, spam filters blocking the email, and network issues. To address these delays, ensure that the server settings are correctly configured, use proper email headers, and check for any network connectivity problems. 

// Example code snippet to address delays in email delivery

// Set proper headers to avoid being marked as spam
$headers = 'From: yourname@example.com' . "\r\n" .
    'Reply-To: yourname@example.com' . "\r\n" .
    'X-Mailer: PHP/' . phpversion();

// Send the email with the correct headers
$mail_sent = mail($to, $subject, $message, $headers);

if ($mail_sent) {
    echo "Email sent successfully.";
} else {
    echo "Failed to send email. Please check your server settings.";
}

Keywords

SMTP email delivery mail server DNS spam folder

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