What are common issues with sending text emails in PHP and how can they be resolved?

Issue: Common issues with sending text emails in PHP include formatting problems, missing headers, and incorrect email addresses. To resolve these issues, make sure to properly format the email content, include necessary headers like From, Subject, and MIME type, and validate email addresses before sending. 

// Example code snippet for sending a text email in PHP with proper formatting and headers

$to = "recipient@example.com";
$subject = "Hello from PHP!";
$message = "This is a test email sent from PHP.";

$headers = "From: sender@example.com\r\n";
$headers .= "Reply-To: sender@example.com\r\n";
$headers .= "Content-Type: text/plain; charset=UTF-8\r\n";

// Validate email address before sending
if (filter_var($to, FILTER_VALIDATE_EMAIL)) {
    // Send the email
    mail($to, $subject, $message, $headers);
} else {
    echo "Invalid email address";
}

Keywords

SMTP PHPMailer mail function email headers spam folder

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