What are the common issues with using the mail() function in PHP for sending emails?

One common issue with using the mail() function in PHP for sending emails is that emails may end up in the recipient's spam folder due to improper headers or content. To solve this issue, you can set proper headers such as From, Reply-To, and MIME type to ensure the email is delivered correctly. 

$to = 'recipient@example.com';
$subject = 'Subject of the email';
$message = 'Content of the email';
$headers = 'From: yourname@example.com' . "\r\n" .
    'Reply-To: yourname@example.com' . "\r\n" .
    'MIME-Version: 1.0' . "\r\n" .
    'Content-type: text/html; charset=utf-8' . "\r\n";

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

Keywords

mail function SMTP spam folder email headers error handling

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