What are some potential pitfalls to avoid when trying to send HTML emails with dynamic content, such as links, through PHP's mail() function?

One potential pitfall to avoid when sending HTML emails with dynamic content through PHP's mail() function is to ensure that the content is properly formatted with the correct MIME type. This includes setting the appropriate headers and ensuring that the HTML content is correctly encoded. Failure to do so may result in the email being displayed incorrectly or not at all by the recipient's email client. 

$to = "recipient@example.com";
$subject = "Dynamic Content Email";
$message = "<html><body>";
$message .= "<p>This is a dynamic content email with a <a href='https://example.com'>link</a>.</p>";
$message .= "</body></html>";

$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type: text/html; charset=UTF-8" . "\r\n";

mail($to, $subject, $message, $headers);

Keywords

HTML emails dynamic content links PHP mail function pitfalls

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