added forwared control from email to smtpapi
added forwared control from email to smtpapi

pandeysoni/sendgrid-nodejs,XEuRoMAN/sendgrid-nodejs,mauricionr/sendgrid-nodejs,vermaslal/sendgrid-nodejs,sendgrid/sendgrid-nodejs,metaraine/sendgrid-nodejs,sendgrid/sendgrid-nodejs,sendgrid/sendgrid-nodejs