Cold Email Deliverability Expert Needed

I’m looking for an experienced cold email deliverability expert to troubleshoot an issue with my email campaigns. I’m currently sending cold emails using n8n automation, but my emails are consistently landing in Spam/Junk, even after adding a 5-minute delay between emails... (Budget: ₹400 - ₹750 INR, Jobs: Bulk Marketing, DNS, Email Handling, Email Marketing, n8n)