Before you spend more on copy, worth ruling out deliverability first. 1,000 sends and not a single reply, not even a "not interested", is usually an inbox placement problem rather than a copy problem. Copy that bad still gets angry replies. Send a few tests to real Gmail and Outlook accounts you own and see where they actually land. Worth confirming the list is verified and the sending domain has been properly warmed too. If you are sitting in spam, more volume just burns the domain faster. If placement checks out fine, then the advice above stands and it is a copy and targeting job from there. And Gavin's question matters a lot here. If you have an existing agency, or any past clients or contacts at all, warm and connector outreach will beat cold email every time in this niche. Mortgage brokers are relationship led. That is the route we teach in the Same Day Client Getting Kit. This one walks through the non-cold way to land coffee dates: https://www.youtube.com/watch?v=pjNaBEWm0Fs