kubectl -n overleaf exec -it deployment/overleaf -- node -e "
const nodemailer = require('nodemailer');
const transporter = nodemailer.createTransport({
  host: 'smtp.gmail.com',
  port: 587,
  secure: false, // Must be false for 587 STARTTLS
  auth: {
    user: 'celestino.rey@gmail.com',
    pass: 'thrcfsukitfqtfrd'
  },
  logger: true,
  debug: true
});

console.log('Initiating explicit SMTP connection handshake verification...');
transporter.verify((error, success) => {
  if (error) {
    console.error('❌ HANDSHAKE FAILED:', error);
  } else {
    console.log('🚀 SUCCESS: SMTP context verified and connected correctly!');
  }
});
"