Short answer: no. Cold email is not dead.
Longer answer, and the one that's actually useful: the version most people are still running died somewhere around 2021, and they're reading its death as the death of the channel.
I've sent over 5.5 million cold emails across 30+ sending engines and seven countries. Here's what the data says rather than what LinkedIn says.
Does cold email marketing still work?
Yes, with a caveat that matters.
On a recent campaign, 13,700 emails produced 202 replies, of which 107 were positive. That's a 1.47% reply rate, and 75 of those became held meetings with founders and sales leaders.
Those numbers are unremarkable. That's the point. This is an ordinary campaign, not a showcase, and it still produced 75 conversations with real buyers.
What's changed is the cost of doing it badly. In 2018 you could send 500 generic emails from your main domain and book meetings. Today that same approach burns the domain in a fortnight and produces nothing, because inbox providers got very good at spotting it.
So the channel works. The shortcut died.
What actually died
Sending from your primary domain. Google and Microsoft made SPF, DKIM and DMARC mandatory for bulk senders in 2024. Send from your real domain, get it blacklisted, and your website email goes down with it.
Volume without infrastructure. Blasting 200 a day from one inbox is the fastest way to a spam folder. The working number is closer to 25.
Generic personalisation. "I came across your profile and was impressed" is recognised instantly by both the reader and the filter. Merge tags are not personalisation.
Buying a list and sending to it. Lists decay at roughly 2% a month. Send to one that's six months old and your bounce rate alone will damage your sender reputation before anyone reads a word.
What replaced it
Signals. Rather than emailing everyone who matches a filter, you email the smaller number of companies where something just changed.
A role that's been open 60 days. A funding round last month. A new VP of Sales in seat. A tool in their stack you can price against. Each of those gives you a first line that's specific, dated and true, which is the only thing that separates a cold email from every other cold email.
The trade is fewer emails to better-chosen people, with a reason to be writing this week rather than any week.
The honest limits
Cold email is not right for everything, and anyone telling you otherwise is selling.
It struggles when your buyer isn't at a desk. Operations Directors on industrial sites, for example, are among the hardest people in B2B to reach by inbox, and a campaign aimed at them needs phone and LinkedIn alongside email rather than email carrying it alone.
It struggles when your deal size is too small to justify the setup. Infrastructure, data and warmup cost real money before the first send.
And it struggles when the offer is weak. No subject line rescues a proposition nobody wants. That's not a channel problem.
So, dead?
Cold email is a channel where the barrier to entry went up. That's not the same as death. It's the opposite: the people who do it properly now face less noise, because the ones sending 500 generic emails from their main domain have mostly burned their domains and stopped.
If your cold email isn't working, the diagnosis is almost never "the channel is dead." It's usually the list, the infrastructure or the offer, in that order. I wrote up the order to check things in if you want to work through it.