You will need to have SMTP ( way to send mail ) because the system will use it to
- Send password reset email
- Order related notifications
- Restaurant owner registration
- Driver registration
This is probably the easiest way to obtain SMTP data. Create an email in your hosting and get a note of the credentials. You will need them in the install process.
Then click on "Connect Device". You will find all the required info there
Here are some examples of how it may look
SendGrid is the leading SMTP provider. Easy to set up and reliable service.