95% of people quit cold email right before the system starts working.
I've been running cold email for years, including campaigns for my own businesses. They almost never work on the first launch. Subject lines need testing, copy angles need iteration, lead lists need cleaning, sending volumes need dialing in.
Nobody skips that phase. It doesn't exist.
Here's the failure pattern I see constantly: someone learns cold email, builds a campaign, launches it, gets no replies in the first two weeks, and quits. They call it a failure.
But the launch is just the beginning. The optimization phase is where the actual system gets built. Most people never make it there because they're expecting immediate results from a channel that rewards patience and iteration.
The stat I'd put on it: 95% of people who try cold email quit before the system actually starts working.
If your campaign isn't converting right now: don't quit. Diagnose. What's your open rate telling you about your subject lines? What's your reply rate telling you about your copy angle? Adjust one variable and test again.
The system works. But only if you stay in the game.