This application sends batch emails behalf of your Gmail account. You need to get credentials in the form of client id and client secret from https://console.cloud.google.com/apis and put them in appsettings.json as it is done in appsettings.Development.json.

Just run the server using:

dotnet run

Then go to the Email tab, it will prompt you to authorize with Gmail. Once you are authorized, the UI is simple to use.

• I assume you are familiar with the Gmail Api. In order to send to any email you need to verify your Google application in the developer console.
• No Javascript is used, so if you don't add any destinations (Name + Email) and click send, nothing will be sent.