Hi All,
My post Is about the best Email marketing tool. I've always used Mailchimp and have loved it. Everything is depends upon your requirement. I always go for bulk mailing for newsletters that is why I use Mailchimp. If you want to do bulk emailing I would suggest you to go for MailChimp.
Also, You can checkout a detailed article on MailChimp that I have written as per my experience with this tool:- Best Email marketing software