Hi, I currently do part time freelance VA work for a Healthcare Agency, we use iContacts, which can send out over 400 emails at ANY designated time. There is a cost. You can export all your contacts from gmail, Linked In, Facebook etc. It will also allow you to keep track of the progress of the emails sent, whether they have been open, rejected, answer in a Pie Chart.
**The only CON is that the recipent must accept emails/communication and confirm**