You've probably seen the post. Adam Robinson, CEO of RB2B, telling his LinkedIn audience that cold email is dead, that the game has moved on, that founders still grinding out cold sequences are fighting the last war. It's a good hook. It's also, by his own account, not what his company actually does, and the contradiction is more interesting than either side of the argument alone.
The post that started the argument
Robinson's public position isn't subtle. He's built a real chunk of his LinkedIn following on the claim that cold email, the classic list-buy-and-blast version most agencies still sell, is a dying channel, and that founders should be building warm, signal-based pipelines instead. It's a message that resonates, because a lot of people running cold email genuinely are watching reply rates erode and wondering if he's right.
Then there's the other post, the one where Robinson himself admitted the gap out loud: he gets criticized on LinkedIn for saying cold email is dead, while his own email lead, Taylor Haren, is sending 100,000 cold emails a month for RB2B and is responsible for 42% of the company's revenue. Robinson didn't hide this. He posted it himself, as the setup for explaining what he actually means.
The math that doesn't add up, until it does
Read those numbers on their own and Robinson looks like he's contradicting himself in public. A hundred thousand emails a month is real cold-email volume by any agency's standard, and 42% of revenue tied to it is not a rounding error, it's close to half the company's top line running through a channel its own CEO calls dead.
But look at how RB2B's sending is actually structured and the contradiction gets a lot smaller. Robinson splits outreach into two distinct buckets, warm and cold, and reports very different performance for each: a warm-bucket signup rate around 1 in 8, which he describes as something like 30 times better than the cold bucket. Across the company's Smartlead-routed sending overall, RB2B has reported an average positive reply rate of 1.97% and an email-to-signup rate of 0.57%. Those blended numbers sit well above what most agencies report for pure list-based cold email, which is exactly the gap this debate is actually about.
| BUCKET | WHAT TRIGGERS THE SEND | REPORTED PERFORMANCE |
|---|---|---|
| Warm (inbound-led outbound) | Prospect visited RB2B's site, identified within hours | ~1-in-8 signup rate, per Robinson |
| Cold (list-based) | Static list, no recent behavioral signal | The baseline Robinson's 30x comparison is measured against |
| Blended, company-wide | Smartlead-routed sending across both buckets | 1.97% positive reply rate, 0.57% email-to-signup |
Laid out that way, the two Robinson posts stop looking like a contradiction and start looking like two different measurements of two different things. "Cold email is dead" is a claim about the bottom row of that table's cold bucket specifically. "42% of revenue and 100,000 sends a month" is a claim about the combined program, warm and cold together, run by someone who is very good at the warm half. Both statements can be entirely true at once, because they're not describing the same bucket.
What 'warm' actually means in Robinson's playbook
The mechanism behind RB2B's numbers is what Robinson calls inbound-led outbound, and it's built on the product RB2B sells: identifying anonymous website visitors. When a prospect visits RB2B's site, the system can trigger a personalized email within hours, addressed to someone who just showed real, timestamped interest, not a name pulled from a purchased list who's never heard of the company.
Technically, this is still email. It's still unsolicited in the sense that the recipient didn't ask to be contacted. By the letter of most definitions, that makes it cold email, which is exactly the definitional knot Robinson's critics are pointing at when they call out the contradiction. But functionally, it behaves nothing like a list-based blast, because every send is triggered by a real, recent, specific behavioral signal rather than firmographic guesswork.
The identification layer underneath this is the part that's easy to skip past, and it's also the part that isn't available to every company equally. RB2B's product exists specifically to de-anonymize website visitors, so the company has a first-party, always-on signal source that most businesses would have to buy, build, or approximate some other way. That's worth naming honestly: Robinson's 30x figure comes from a company that happens to sell the exact tool its own outbound program depends on. That doesn't make the underlying principle, signal-triggered timing beats static lists, any less real, but it does mean replicating his exact numbers requires replicating his exact signal infrastructure, not just his messaging philosophy.
Most companies don't have a website de-anonymization product sitting in-house, but most companies do have some version of a real-time behavioral signal available if they go looking: a pricing page visit, a free-trial signup that stalled, a support ticket that hints at switching intent, a job posting that signals a new budget line opening up. The specific signal RB2B uses is proprietary to what RB2B sells. The mechanism, react fast to something real instead of mailing a static list on a schedule, is not proprietary at all, and it's the part worth stealing regardless of which vendor's identification tool you're using.
Our verdict: he's not wrong, he's using an unpopular word
Here's where we land on this, and it's not a both-sides shrug. Robinson is right that untargeted, list-bought, spray-and-pray cold email is dying, and the deliverability data across the industry backs that read up. He's also right that signal-triggered outreach outperforms it by a wide margin, his own 30x figure is dramatic but directionally consistent with what pain-qualified targeting advocates have been arguing for the past year.
“"Cold email is dead" is a marketing line, not a strategy. The strategy underneath it, signal-triggered timing over static lists, is real, and RB2B's own numbers are the best evidence for it.”
Where Robinson's messaging actually misleads is in the word "dead." A channel responsible for 42% of your company's revenue is not dead. It's been redesigned, and the redesign, timing sends against real behavioral signals instead of static lists, is a genuinely different discipline than what most people picture when they hear "cold email." Calling that transformation "death" gets attention. Calling it what it actually is, a targeting upgrade, gets you a less viral LinkedIn post and a more accurate playbook.
It's also worth being honest about who "cold email is dead" actually helps and hurts as a piece of messaging. It helps Robinson: it's punchy, it drives engagement, and it positions RB2B as the alternative to a channel everyone already has mixed feelings about. It arguably hurts the founder who takes the headline literally, kills their entire outbound program, and doesn't replace it with anything, because they never got to the part of the argument where Robinson explains that his own team is still sending six-figure monthly email volume. The nuance is in the follow-up post, not the headline, and headlines are what actually spread.
That's not a unique failure mode to Robinson specifically. It's the standard shape of most contrarian LinkedIn discourse: a sharp, absolute claim gets the reach, and the caveats that make the claim actually true live three paragraphs down, or in a completely separate post most of the original audience never sees. The people most likely to act on "cold email is dead" without reading further are exactly the people least equipped to notice the distinction between a list-based blast and a signal-triggered send, which means the loudest version of Robinson's message probably does more damage to outbound programs than his actual practice would ever justify.
What to actually take from this if you run outbound
The useful move isn't picking a side in "is cold email dead." It's auditing your own program against the warm-versus-cold split Robinson's numbers actually describe, because the gap between his two buckets is the real finding here, not the headline claim.
For B2B teams running cold email today, the real question isn't whether to believe Robinson or his critics. It's whether your own program can actually tell the difference between a warm, signal-triggered send and a cold, list-based one, because RB2B's numbers say that difference is worth roughly 30x. If your reply-rate reporting can't answer that question today, that's the gap worth closing before the next round of this exact debate shows up in your own feed.
None of this requires picking a side between Robinson and the LinkedIn commenters calling him out. It requires noticing that both sides are half right, that the label is doing more work than the mechanism, and that the mechanism is the part actually worth copying. "Is cold email dead" is a genuinely bad question to spend your energy debating. "Can I tell my warm sends from my cold ones, and am I timing either against anything real" is the question underneath it, and it's the one your own revenue numbers will eventually force you to answer either way.
See where you are cited today
A free snapshot audit of your rankings and AI citations before we ever talk.
Josh leads work at the intersection of SEO and generative engines at Something Inc., helping B2B brands get ranked and cited across every major AI engine.