That darn email promotions tab. Don't you hate it? What if I told you some secrets that would keep your emails from landing there? It turns out there is a science behind the spam filter. And knowing how it works can make a BIG difference in your open rates. In this episode, I share the principles you need to understand about "sender reputation," and I share 12 things you can do to increase that reputation (and keep your emails out of the promo tab).