To integrate SMTP with ThinkQuiz, 

1) Go to Integrations >> Other Integration

2) Click on the arrow as shown in the image below, 

3) Enter the details in the provided fields

1. Enter the SMTP server

2. Enter the SMTP port

3. Enter the SMTP username which is the Email address

4. Enter the SMTP password which is the working login password of the Email account

4) Click on Save button after entering the details

For Gmail SMTP, Click here for the steps

For Mailgun SMTP, Click here for the steps

For SendinBlue SMTP, Click here for the steps

For any other SMTP, follow the same steps and for any further assistance, feel free to contact our support desk