For US email marketing solutions we focus on sending email shots to targeted and Opted in US email list we have, these lists are generated online and maintained on weekly basis to make sure we have the updated email id’s and we do not end up hitting spam or bounced email column. Currently we have US opted in email list available for verticals like Pharma, Finance, Dating, Student (12 to 16 age group). Targeting to these email id’s for email marketing can be done based on the age group, In case you already have an email list’s which you want to send email shots to and expand it keeping the opted in stuff in line.