web-app-template/backend/app/app.Configuration/EMailSettings.cs

namespace app.Configuration
{
    public class EMailSettings
    {
        public string FromName { get; set; }
        public string FromAddress { get; set; }

        public string MailServerAddress { get; set; }
        public int MailServerPort { get; set; }

        public string Username { get; set; }
        public string Credentials { get; set; }
    }
}