How to upload PHPMAILER to Wordpress?

Question

PHPMailer

The script works on local (without vp), started transferring to the site, gives an error, by debug it gave this (Changed ports)

2019-12-13 16:24:21 SERVER -> CLIENT: 220 smtp.gmail.com ESMTP t27sm5175832ljd.26 - gsmtp
2019-12-13 16:24:21 CLIENT -> SERVER: EHLO a0368236.xsph.ru
2019- 12-13 16:24:21 SERVER -> CLIENT: 250-smtp.gmail.com at your service, [2a0a:2b42:41:5b75::]250-SIZE 35882577250-8BITMIME250-STARTTLS250-ENHANCEDSTATUSCODES250-PIPELINING250-CHUNKING250
2019-12-13 16:24:21 CLIENT -> SERVER: STARTTLS 2019-12-13
16:24:21 SERVER -> CLIENT: 220 2.0.0 Ready to start TLS
-> SERVER: EHLO a0368236.xsph.ru
2019-12-13 16:24:21 SERVER -> CLIENT: 250-smtp.gmail.com at your service, [2a0a:2b42:41:5b75::]250-SIZE 35882577250-8BITMIME250-AUTH LOGIN PLAIN XOAUTH2 PLAIN- CLIENTTOKEN OAUTHBEARER XOAUTH250-ENHANCEDSTATUSCODES250-PIPELINING250-CHUNKING250 SMTPUTF8
2019-12-13 16:24:21 CLIENT -> SERVER: AUTH LOGIN
2019-12-13 16:24:21 SERVER -> CLIENT: 334
VXNlcm2hb2hb5 :24:21 CLIENT -> SERVER: c2hnLml2YW45N0BnbWFpbC5jb20=
2019-12-13 16:24:21 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2019-12-13 16:24:21 CLIENT -> SERVER:
M1owMElwTWIjUSVnX1dl :24:21 SERVER -> CLIENT: 534-5.7.14 534-5.7.14 Please log in via your web browser and then try again.534-5.7.14 Learn more at534 5.7.14 https://support.google. com/mail/answer/78754t27sm5175832ljd.26 - gsmtp
2019-12-13 16:24:21 SMTP ERROR: Password command failed: 534-5.7.14 534-5.7.14 Please log in via your web browser and then try again.534-5.7.14 Learn more at534 5.7.14 https://support.google.com/mail/answer/78754 t27sm5175832ljd.26 - gsmtp
SMTP Error: Could not authenticate.
2019-12-13 16:24:21 CLIENT -> SERVER
:
QUIT https://github.com/PHPMailer/PHPMailer/wiki/Troubl...
Message could not be sent.Mailer Error: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubl...

js

$(function(){
    $('#ajax_form').submit(function(){
        var data = $('#ajax_form').serialize();
        $.ajax({
            url: '/wp-content/themes/electric/mail.php',
            type: 'POST',
            data: data,
            success: function(res) {
            }
        })
        return false
    })
});

php code

<?php 

require 'PHPMailerAutoload.php';

$mail = new PHPMailer;

$mail->isSMTP();         
$mail->Host = 'smtp.gmail.com';  
$mail->SMTPAuth = true;                             
$mail->Username = '[email protected]';           
$mail->Password = 'tyt_moi_password';                      
$mail->Port = 587;                                  
$mail->SMTPDebug = 2;
$mail->From = '[email protected]';
$mail->FromName = 'DvaBro';
$mail->addAddress('[email protected]');               

$mail->isHTML(true);                                 

$mail->Subject = 'Новая заявка с сайта DvaBro';
$mail->Body    = "Имя: {$_POST['name']}<br>Фамилия: {$_POST['surname']}";
$mail->AltBody = Имя: {$_POST['name']}\r\nФамилия: {$_POST['surname']};

if(!$mail->send()) {
    echo 'Message could not be sent.';
    echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
    echo 'Message has been sent';
}
?>

files location:
...
/js/main.js
-mail.php
-class.phpmailer.php
-class.phpmaileroauth.php
-class.phpmaileroauthgoogle.php
-class.pop3.php
-class.smtp.php
-PHPMailerAutoload.php
-index.php

Answer 1

It seems like WordPress already has a PHPMailer class and it works in wp_mail(), so you get an error

Answer 2

In WP, you need to send ajax requests differently. by google ajax in wordpress, everything is painted on the cam, I'm wondering why neither wp_mail nor phpmailer works for me, from local, letters do not stupidly come but are sent