Cold email expert for hire

Hi there. I’m interested in sending 1,000 -20,000 emails per day to a large list scrapped from Instagram. I’m having deliverabitlity issues with Sendgrid being the sender to Gmail addresses. If someone can help me find a way to do this I will be grateful and I’m willing to pay for help with a solution.
Thank you.

I can help. Ping me on Skype (live:th3technician)