Please PM or email me at email@example.com and I can give you more info in regards to the actual set up I have. It is apparently interspire ultimate and a multi SMTP/MTA server that allows for 20,000 a day sending limit. I'll be sending to non-opt in lists and want to know the best configuration for long lasting campaigns and maintaining the life of my gmail accounts, or if its best to use domain emails instead of gmail, just want some pro feedback. I currently have 9 gmail accounts set up on it, but have a total of about 48 that I can add. I know gmail says the send limit per account is 500 a day per, and I figure setting a limit of about 400 would be good, but from feedback I've gotten from others they are saying I should start off at about 240 emails a day from each account. Not exactly the bulk mailing solution I was looking for since I want to send off to a lists of about 15-18k a day. Do I just need a lot of gmail accounts set at low settings? Would you recommend I use domain emails instead (If so what kind of limits would I be looking at with that? I have hostgator and maybe 8-9 domains from namecheap that could be used) Can anyone out there with experience help me out and give me some feedback and tips so I can get this thing set up and start sending?