I need a few suggestions for a mass emailing campaign. I have talked with blueangelhost and that is our top choice right now but I'm worried that if we get too many spam complains (we plan to send 100K emails a day) we will just get blocked and lose money. Our emails are optin but since it's payday niche they get marked a lot so thats why I am looking for somebody a bit more flexible. I have looked through the hosting section completely, many hosts have mixed reviews. Any suggestions?