Getting 'Greeting never received' error

[quacrobat]

Hi, trying to test in github codespaces. I followed all the steps in the readme, but I never receive the email magic link when I try to signup/login. I get:

https://next-auth.js.org/errors#signin_email_error Greeting never received {
  error: {
    message: 'Greeting never received',
    stack: 'Error: Greeting never received\n' +
      '    at SMTPConnection._formatError (/workspaces/photoshot-0/node_modules/nodemailer/lib/smtp-connection/index.js:790:19)\n' +
      '    at SMTPConnection._onError (/workspaces/photoshot-0/node_modules/nodemailer/lib/smtp-connection/index.js:776:20)\n' +
      '    at Timeout.<anonymous> (/workspaces/photoshot-0/node_modules/nodemailer/lib/smtp-connection/index.js:710:22)\n' +
      '    at listOnTimeout (node:internal/timers:559:17)\n' +
      '    at processTimers (node:internal/timers:502:7)',
    name: 'Error'
  },
  providerId: 'email',
  message: 'Greeting never received'
}