I use SendBlaster pro 4 + Dedicated IP SMTP server.
The first time I tried bulk emailing, I bought an email list of 100,000+, didn't warm up ip and my Vps almost banned my getting spam trigger warnings. It was hell.
Now I don't bulk email like that again. I don't want messages go to spam folder either. I Scrape fresh data myself (not buy tons of untargetted junk emails). Thanks to scrapebox
@loopline He might want to chim in on this.
If you would Scrape and bulk email think about what you want to achieve. And do it slowly. I won't bulk email blast again. I am fine with just maybe 50 to 100 sending per day to my scraped data. If I am going to blast, not really like tons a time. Just blast and let the software paused like 20 seconds before it sends to another recipient in the list.
Call me paranoid, I learned this the hard way. I don't mind even if it takes forever to send based on my configurations since I am using a free SMTP with 2000 free monthly or simply the turbo smtp with 6000 monthly, anyway.
So I have nothing to lose.