I posted this as a comment on the blog, but it kind of disappeared... so whatever.

I mentioned that sometimes the 800 pound gorilla isn't as slow or bureaucratic as you would think. With PostageApp, we have several large competitors (SendGrid and MailChimp) and they are frighteningly good at pivoting and offering new and exciting features.

I'm having a really fun time watching the developments of all the players in our industry. If you can take something away from fighting with the 800 pound gorillas, it's that you will learn a lot.