Sendgrid Error (POST /email/test (1068 ms) 500)

System Information
  • Strapi Version: v3.6.6
  • Operating System:
  • Database: postgres
  • Node Version: v14.17.1
  • NPM Version: 6.14.13
  • Yarn Version: 1.22.10

I have debug POST /email/test (1068 ms) 500, when trying to send a test email via sendgrid. here is my code:
Path — ./config/plugins.js .

module.exports = ({ env }) => ({
  // ...
  email: {
    provider: 'sendgrid',
    providerOptions: {
      apiKey: env('SENDGRID_API_KEY'),
    },
    settings: {
      defaultFrom: '***@mydomain.com',
      defaultReplyTo: '*****@gmail.com',
      testAddress: '*****@gmail.com',
    },
  },

Did I missing something or where am I wrong? Please help. thank you!

Have you find the answer? Now i have same problem