One-Click 100k Email Blast

I have a verified customer list of roughly 100,000 addresses and a promotional marketing message ready to go. The email needs to reach every inbox in a single send, with each recipient seeing their own first name and unique coupon code in the body copy... (Budget: ₹600 - ₹1500 INR, Jobs: Bulk Marketing, Email Campaign, Email Developer, Email Handling, Email Marketing, Mailchimp, SendGrid, SMTP)