Deliverability Tricks and Cold Email Fraud Exposed

What I Watched This Week

I go through a lot of cold email content. Most of it rehashes the same surface-level advice about subject lines and personalization. This week two videos stood out for completely different reasons. One gave a genuinely useful deliverability benchmark hack I hadn't seen framed quite this way before. The other was a 15-minute exposure of a self-proclaimed cold email king whose entire operation collapsed because the fundamentals were rotten from the start.

Together they tell one story: infrastructure without offer quality is a ticking clock, and shortcuts that look like advantages are landmines waiting to blow.

Video 1: The Fake Podcast Deliverability Benchmark

The video opens with a viewer question that I get some version of constantly. Joe asks why a campaign with a 7% reply rate works for a week or two and then dies. Nick's answer covers five causes, and he's right on all of them. But the tactic he proposes to diagnose the problem is the most interesting part of the video.

The Five Deliverability Killers He Names

Nick runs through them quickly but they're all real:

• Sending volume too high per mailbox
• Bounces signaling to Gmail and Outlook that you're sending to non-existent addresses
• Spam trigger words in the copy itself
• Recipients manually marking you as spam
• ESPs and registrars tightening limits over time

On the volume point, he says the current safe range is 15 to 20 emails per day per mailbox, down from what used to be 20 to 30 or even 40. That tracks with what we're seeing across the board. The cost of cold email outreach is going up because you need more mailboxes to send the same volume responsibly. If you're running campaigns through Instantly or Smartlead, that's the range you should be working within right now.

The bounce point is worth emphasizing. Every time you send to an address that doesn't exist, you're telling the receiving mail server that your sending behavior looks automated. Enough of those signals and your deliverability tanks regardless of how good your copy is. This is why validating your list before a campaign is non-negotiable. If you're not running your leads through a proper email validator before sending, you're burning your domains for no reason.

The Fake Podcast Benchmark Trick

Here's where it gets interesting. Nick recommends setting up a separate campaign using a fake podcast as the offer. The pitch is simple: you're a big YouTuber or podcaster with over a million subscribers, you found the prospect, and you want to invite them on as a guest.

His logic: almost nobody says no to a podcast invite. So if your deliverability is healthy, you'll get a high response rate on this campaign quickly. If you're getting low responses even with this near-irresistible offer, you know it's a deliverability problem and not a copy or offer problem.

He says he actually runs this as either a permanent low-volume campaign or turns it on specifically when something feels off with his mailboxes. A few emails per mailbox go out with the podcast invite framing. If they land and get responses, the infrastructure is healthy. If they don't, the issue is upstream.

I want to be direct about something here. The tactic works as a diagnostic tool. The logic is sound. But Nick himself acknowledges it's a bit uncomfortable, calling it "kind of mean." And he's right to flag that. You're telling someone they're being invited onto a show that either doesn't exist at that scale or where you have no intention of actually booking them. That's creating a false expectation.

I've written about cold email landmines before. Fake common ground, fabricated case studies, inflated credentials. They all look like shortcuts and they all have a detonation point. This trick is lower stakes than outright fraud, but it still involves misrepresentation. The risk is reputational. If the wrong person gets that email and calls it out publicly, you've got a problem that's bigger than a deliverability issue.

What I'd actually recommend instead: use a real but low-commitment offer as your benchmark. A short industry survey. A genuinely useful piece of content you're sharing. Something that has a high yes rate because it's actually valuable, not because it's a fictional opportunity. The diagnostic logic Nick is applying is correct. The specific mechanism doesn't have to involve deception.

What's Worth Taking From This Video

The framework for diagnosing deliverability problems is genuinely useful. Most people blame their copy when their campaigns underperform. Nick is right that deliverability is usually the actual culprit. The idea of running a separate benchmark campaign with a high-acceptance offer is smart. Keep the benchmark offer clean and you've got a legitimate ongoing health check for your infrastructure.

Also worth noting: he says he does not use open rate tracking because pixel-based tracking hurts deliverability. That's accurate. Open tracking adds an image pixel that some spam filters flag. If you're trying to protect your sender reputation, reply rate is a better signal anyway. Open rates are easy to game and increasingly unreliable due to mail privacy protection features.

For the full cold email tech stack context, check out our cold email tech stack guide.

Video 2: The Cold Email King Fraud Breakdown

This one is less about tactics and more about pattern recognition. Sabo Nagy breaks down how a self-proclaimed cold email king named Jack Bricknell allegedly scammed over $500,000 worth of assets through chargebacks, unfulfilled services, and contract violations.

I'm not going to turn this into a takedown piece. What I am going to do is extract the business lessons, because every red flag in this story is something you should be able to spot before you hire someone, partner with someone, or take their advice.

The Story In Brief

Jack had a small social media following, no money, and parlayed that into a 33% equity stake in a cold email infrastructure company called Puzzle Inbox. The company scaled to multiple five figures in the first month. Jack then wanted out and negotiated a $20,000 buyout. A non-compete was signed with a notary, with a $300,000 penalty clause for violations.

Three to six months later, according to the video, Jack was promoting competing inbox products in his own group chat. When confronted, he allegedly said the contract wasn't valid and blocked the other parties. He then started his own agency, took on hundreds of clients, and according to Sabo and the infrastructure provider he used, never delivered meaningful results for any of them.

The specific infrastructure detail is damning: Jack was running over one million emails per day through a single provider and generating a 0.001% reply rate on average.

Read that number again. One million emails a day. 0.001% reply rate.

What 0.001% Actually Means

At one million emails per day, a 0.001% reply rate is ten replies. Ten. Per day. Across all clients.

Our benchmark in The Cold Email Manifesto is 200 emails per day per sender with a meeting book rate that actually fills a calendar. The math only works if your reply rate is meaningful. At 0.001%, you're not running a cold email operation. You're running a domain cremation service.

What causes a reply rate that low? Usually a combination of everything Nick described in the first video, compounded: terrible copy, zero targeting, no list validation, and domains so burned they're delivering to spam folders if they're delivering at all. The video mentions that Jack's copy was performing worse than anything the infrastructure provider had seen, and that he was repeatedly advised to fix it and refused.

That arrogance is a specific failure mode I see often. Someone builds a following by talking about cold email and then conflates the audience with competence. The audience grew because of social media tactics, not because the cold email work was actually producing results. When the results don't come, they blame the infrastructure, the list, the market, anyone but the offer and copy.

The Chargeback Play

The alleged endgame was using chargebacks to claw back over $80,000 in payments to the infrastructure provider after more than a year of service. The justification offered was that the provider had leaked copy. According to the video, the copy was generating 0.001% reply rates. There's nothing worth protecting there.

This is a pattern worth understanding. When someone builds on a foundation of misrepresentation, no single part of the operation has integrity. The offer to clients wasn't real. The contract with the original SaaS partners wasn't respected. The payments to the infrastructure provider weren't honored. Each piece follows from the same underlying orientation toward other people in business relationships.

This is the same pattern I've seen play out with people who use fake case studies, fake common ground in their email openers, fake credentials. The landmine I've written about before isn't just that it eventually blows up with the prospect. It's that it warps how someone thinks about every relationship in the business.

The Social Proof Trap

Jack had Twitter followers, which gave him enough perceived credibility to get a third of a real company for free, get bought out for $20,000, sign agency clients, and build an infrastructure operation. None of that required actual cold email results.

This is worth sitting with. Social proof in the cold email space is almost entirely disconnected from actual deliverables. Screenshots of reply rates are easy to fabricate. Case studies can be written for clients who don't exist. A loud enough presence on social media can generate paying clients even when the underlying system doesn't work.

The check is simple: ask for verifiable proof. Not a screenshot. Not a testimonial from someone you can't contact independently. If someone is selling cold email services or coaching, ask for three current clients you can speak to directly. Ask for reply rate data from a live campaign with the domain visible so you can verify the sending infrastructure is real. Most people won't ask. The ones who do tend not to get scammed.

If you want scripts for evaluating cold email vendors or running your own outbound properly, our top 5 cold email scripts are a good starting point.

What This Video Is Actually Warning You About

Volume without offer quality destroys infrastructure. Jack was sending one million emails a day and getting ten replies. That volume isn't neutral. It actively burns domains, destroys sender reputation, and generates spam complaints that affect every other sender on shared IP ranges.

The people who got hurt weren't just his direct clients. They were everyone in the ecosystem who shares infrastructure with that level of abuse. This is why responsible cold email senders care about list quality, copy quality, and volume limits even when nobody is watching. The bad actors in the space raise costs for everyone else.

When you're building your own outreach, use tools that give you real data. Verify your lists with a proper email validator before any send. Keep your per-mailbox volume within safe ranges. And if you want to check whether your copy is actually the problem or if it's deliverability, use Nick's benchmark campaign idea with a real offer instead of a fake one.

The Pattern Across Both Videos

Watch these two videos back to back and one thing becomes clear: the cold email space consistently rewards people who look like they know what they're doing over people who actually do. Nick's video is about how your reply rates can look fine for two weeks before deliverability collapses. The second video is about how an entire operation can look like a working business for over a year before it's revealed to have been producing almost nothing.

The solution in both cases is the same: measure the right things, not the vanity metrics.

Reply rate matters. Meeting book rate matters. Revenue generated per campaign matters. Open rates, follower counts, and daily send volume are all numbers that can be inflated without producing any real outcome.

I've helped more than 14,000 entrepreneurs generate over 500,000 sales meetings. The ones who sustain results are the ones who obsess over offer quality first, targeting second, and infrastructure third. They validate their lists. They write copy that makes a specific claim to a specific person. They treat deliverability as a metric to protect, not a problem to spam through.

The ones who fail are the ones who invert that order. They buy more mailboxes when reply rates drop. They increase send volume when campaigns underperform. They treat the infrastructure as the lever when the offer is the actual problem.

Nick's benchmark trick is useful precisely because it forces you to separate infrastructure health from offer quality. If a near-perfect offer doesn't land, you've confirmed it's deliverability. If it does land, you know your copy or targeting needs work. That diagnostic clarity is worth more than any individual tactic.

If you want to build a real follow-up system on top of a healthy sending infrastructure, our cold email follow-up templates cover the sequences that actually convert once your emails are landing.

What to Actually Implement This Week

One thing. Set up a separate benchmark campaign in your sending tool. Use a real low-friction offer, not a fake podcast invite. Something like a one-question survey on a topic relevant to your niche, a short resource you're genuinely sharing, or a request for a 10-minute expert opinion call where you're doing the asking. Send it from the same mailboxes you're using for your main campaigns, two to three emails per mailbox per week.

Track the reply rate on this benchmark campaign separately. If it stays above 5% consistently, your deliverability is healthy and any underperformance in your main campaigns is a copy or targeting problem. If it drops below 2%, you have a deliverability issue and no amount of copy optimization will fix it until you address the infrastructure. Rotate out burned mailboxes, reduce per-mailbox volume, and run your list through a validator like ScraperCity's email validator before your next send.

This single measurement habit will tell you more about what's actually wrong with your outreach than any open rate dashboard ever will.