Hey HN,<p>I run a site that has 500k email subscribers, and were looking to do a big mass mailing campaign in the upcoming months.<p>We are planning on sending close to 6 campaigns (so 3 million emails) in one month. What is the best solution for us to role this out? Were looking for something our non-technical marketing guy can use, but that I can set up.
MailChimp allows you to buy credits as you go, or pay them monthly by subscriber count. It's also built for marketers so after importing your list there your marketing guy should be fine.<p>If you're looking to do it cheaper, SendGrid offers a newsletter function that's less easy to use and has less features but will allow you to do it cheaper.
I would recommend Amazon SES (<a href="http://aws.amazon.com/ses/" rel="nofollow">http://aws.amazon.com/ses/</a>) Take a look at <a href="http://sendy.co/" rel="nofollow">http://sendy.co/</a> as it's a PHP script if you don't want to write your own.