B2B Cold Email Optimisation

Everything inside my Instantly.ai workspace is already wired up - domains warmed, sending accounts connected, lists imported and basic campaigns running. What I still need is the expert touch that consistently... (Budget: ₹1500 - ₹12500 INR, Jobs: A/B Testing, B2B Marketing, Copywriting, Email Handling, Email Marketing, Internet Marketing, Lead Generation, Leads, Marketing Strategy, Sales)