Mass Email ( the best way 2019 )

Your first (fake) email will get a lot of bounces, and then you will get flagged. If you use services like amazon SES or others to send your 1st fake email you will be kicked because of bounces.
The best way to clean a list is :
1) remove mispelled emails (there are tools for this), for example they remove adresses like "[email protected]". Scrapebox has a good addon to do this.
2) use a cleaning service that will verify the emails validity (without actually sending the emails, it's all about handshake and stuff like that), but it's not cheap

Here is a tool for removing bad syntax ... its a software to manipulate email list. Full version ... just insert the registry in your system



https://www45.zippyshare.com/v/ftY8jR2D/file.html