What are some common pitfalls when using the mail() function in PHP and how can they be avoided?

One common pitfall when using the mail() function in PHP is not properly setting the headers, which can result in emails being marked as spam or not being delivered at all. To avoid this, make sure to include necessary headers such as From, Reply-To, and Content-Type in the mail() function. 

$to = "recipient@example.com";
$subject = "Test Email";
$message = "This is a test email.";

$headers = "From: sender@example.com\r\n";
$headers .= "Reply-To: sender@example.com\r\n";
$headers .= "Content-type: text/html\r\n";

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

Keywords

mail function PHP SMTP spam folder email headers

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