Okay, I want to improve my list. Does anyone have experience sending to @juno.com, @netzero.net and @frontier.com addresses? Do you find that they open any of your emails? Or are they bad subscribers? Also, are they likely to submit spam complaints at all? I know that AOL and Yahoo! addresses are the worst when it comes to spam complaints. And I avoid them like the plague. So I was wondering about these three. EDIT: Also, how about @aim.com and @att.net addresses?