How set up email on production?

When I set up email on dev, it works perfectly. But when I integrate my setup email on production, its not working. Please help me, thank you.

You’ll have to be more precise about what’s working and what’s not.

The steps to set up email will be the same in production and dev environments.

  1. What is the email service being used?
  2. Do you have your own email setup vs using a standard service like Gsuite?
  3. What steps did you follow to set up email?

I use sendgrid, its worke well on my local. Thank you for your answer