How to resolve SMTP could not connect error? [post STARTTLS problem] - php

Question

I have installed php mailer using composer composer require phpmailer/phpmailer. I followed instructions from this website https://www.geeksforgeeks.org/how-to-send-an-email-using-phpmailer.
Below is my code for sending email.
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
require 'vendor/autoload.php';
$mail = new PHPMailer(true);
try
{
$mail->SMTPDebug = 2;
$mail->isSMTP();
$mail->Host = 'mail.example.in';
$mail->SMTPAuth = true;
$mail->Username = 'username';
$mail->Password = 'password';
$mail->SMTPSecure = 'tls';
$mail->Port = 587;
$mail->setFrom('owner#gmail.com', 'Owner');
$mail->addAddress('receipent#gmail.com');
$mail->isHTML(true);
$mail->Subject = "Hello this is subject";
$mail->Body = "Hello this is message;
$mail->send();
echo "Mail has been sent successfully!";
}
catch (Exception $e)
{
echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
}
When I comment $mail->isSMTP(); and send mail, I get the result as message sent but I dont get it in my Gmail inbox.
when I uncomment $mail->isSMTP(); I get error message as shown in below image.
My project is hosted in godaddy server.
Even if I use php mail() function to send mail, response is mail send successfully, but it does not get delivered into my Gmail inbox

Answer 1

If you want to use Gmail, you should follow the steps here to manually add Google MX records to your GoDaddy account:
https://uk.godaddy.com/help/point-my-domains-email-service-to-google-7936
Unfortunately it takes some days for changes to be reflected.
Then you need to disable security features, change your php mailer config like:
$mail->Host = 'localhost';
$mail->SMTPAuth = false;
$mail->SMTPAutoTLS = false;
$mail->Port = 25;
Hope this solves.
------EDIT------
Later I figured out that the emails go to spam folder when the port is 25. I changed the connection to TLS and now I receive them as normal.
Here is the code from my website, it works on Godaddy, I receive e-mails to my gmail account.
$mail = new PHPMailer();
$mail->SMTPAuth = true;
$mail->SMTPSecure = 'true';
$mail->Port = 587;
$mail->Host = "smtp.gmail.com";
$mail->Username = "********#gmail.com";
$mail->Password = "**********";
$mail->SetFrom("********#gmail.com");
$mail->AddAddress("********#gmail.com");
$mail->Subject = " your subject";
$mail->Body = "your body";