What do you use for sending cold emails?

Hey everyone, I've come into possession of a list of highly targeted people that could be interested in one of my products.

As I've read in many places, cold emails are still a thing, but it's be easy to be seen as spam from email providers and getting blocked or with consequences on the deliverability.

Because of that I don't want to risk my main email provider accounts (Google Workspace, Fastmail, AWS SES), so I'm wondering how to send those emails.

Most of the services that I've seen require to connect your own email account, which would be a risk given the above.

How do you usually send those emails? Do you connect your real email accounts or do you just allow the service to send them under your domain?

If you like, also feel free to share about your strategy: how many emails you send, the frequency, etc