Risks of Using Google Workspace for Cold Email Outreach

Hey guys, I’ve got a question that’s been on my mind for a while. I run a startup design agency and we’re doing cold outreach using 30 Google Workspace accounts — sending around 20 emails per account per day after a 14-day warmup. This setup was recommended by an expert, so I went with it — and honestly, we’re getting a ton of positive responses from these accounts alone. People are really impressed by our services! Now I’m seriously considering scaling up by buying more accounts and leads. But I keep wondering… why do people say not to use Gmail (or Google Workspace) accounts for cold emailing? Are there any specific risks I should know about before scaling further? Would love to hear your insights! 👇