PHPMailer not posting [closed]

So I am trying to use PHP mailer on my site however it doesn’t post to the email

Here is the code:

Top:

Where it sends:

        require 'vendor/autoload.php';

        //Instantiation and passing `true` enables exceptions
        $mail = new PHPMailer(true);
        
        try {
            //Server settings
            $mail->SMTPDebug = SMTP::DEBUG_SERVER;                      //Enable verbose debug output
            $mail->isSMTP();                                            //Send using SMTP
            $mail->Host       = 'smtp.office365.com';                     //Set the SMTP server to send through
            $mail->SMTPAuth   = true;                                   //Enable SMTP authentication
            $mail->Username   = 'maileremail';                     //SMTP username
            $mail->Password   = 'mailerpassword';                               //SMTP password
            $mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;         //Enable TLS encryption; `PHPMailer::ENCRYPTION_SMTPS` encouraged
            $mail->Port       = 587;                                    //TCP port to connect to, use 465 for `PHPMailer::ENCRYPTION_SMTPS` above
        
            //Recipients
            $mail->setFrom('maileremail', 'Mailer');
            $mail->addAddress(myemail', 'Joe User');     //Add a recipient
        
            //Content
            $mail->isHTML(true);                                  //Set email format to HTML
            $mail->Subject = 'Here is the subject';
            $mail->Body    = 'This is the HTML message body <b>in bold!</b>';
            $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';
        
            $mail->send();
            echo 'Message has been sent';
        } catch (Exception $e) {
            echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
        }
              ?>

I have tried everything but it still won’t post.

Answer

<?php
mail('[e-mail]', 'Subject', 'Text message...');
?>

https://www.php.net/manual/en/function.mail.php