You should fall under the free plan for mandrill, 12k emails per month I believe. It's fast and free to sign up and test it out. I use it on all my projects a

You should fall under the free plan for mandrill, 12k emails per month I believe. It's fast and free to sign up and test it out. I use it on all my projects and haven't had any issues. I've heard good things about both mandrill and sendgrid. Good luck with your launch.