Gmail Accounts for Cold Email Marketing Questions

Hello, I never used gmail for cold email before, but I have a few friends that are suddenly making over 30kusd/week using great sources..

I have great results with cold email and have had for a long time, but the conversion rate that I get for mine is way lower than them by using gmass, other automations..

In the case of gmonster, what is the recommended age of account to be used? Will there be a google flag when I suddenly plug it in a proxy (different IP)? If so, how to avoid this situation?

Is it better to buy aged or create new pva accounts? If aged, how old would guarantee minimum chance of banning for 200 emails per account? Thanks in advance for those who help with their knowledge.

People send worst things with gmail but its like burn and buy technique. And that really wont work anymore cause their filter system is getting stronger every day if they trigger any spam words they just flag your account instantly so aged accounts really works well in this situations but suspension is inevitable.

Good luck

If your accounts are new, you'll need to warm them and start to send slowly and increase each day. The content that you send is also a major factor.

There's no guarantee for banning or not , there are many factors...proxies,content, your lists quality, volume...