Maybe you’ve seen the headlines, the LinkedIn posts, the works:

“Email is dead.”

“Everyone’s on TikTok now.”

“It will just end up in the spam folder.”

But the data tells a different story.

Email is one of the highest-performing unpaid channels in e-commerce and one of the most overlooked. Across 100 brands, it drove 9.8% of total revenue, putting it ahead of organic search at 6.1%, organic social at 2.4%, and referrals at 3%. Only direct traffic performed better among unpaid sources, accounting for 11.2% of revenue. That’s nearly 1 in every 10 dollars earned, driven by a channel many are calling obsolete. While paid ads brought in over 58% of total revenue, they also require ongoing spend to maintain. Email, on the other hand, costs nothing to send once you've built your list. 

It’s easy to write off email when the newest channels are flashier. While consumer behavior is shifting. Brands who are talking about abandoning email altogether may be leaving serious money on the table.

Email is one of the few channels that allows you to:

A big reason people assume email is a dead channel comes down to two things:

First, not everyone is tracking revenue from email properly. Without clear attribution, it's easy to underestimate its impact. While open rates may be less reliable, revenue attribution is not. If 9.8% of sales are still being driven by email, that’s not a weak signal. That’s a revenue channel worth optimizing.

Second, email has been around for a while, and in a marketing world that chases shiny new tools, it doesn't always feel exciting. But longevity isn't a weakness. It's proof that email continues to deliver results even as trends come and go. When you measure its performance accurately, email often outperforms the newer channels that get all the attention.

Email shines brightest when it comes to bringing customers back and increasing lifetime value. While paid ads are great for acquiring new shoppers, email is what keeps them engaged, informed, and coming back for more. It’s the channel that powers post-purchase flows, restock alerts, product recommendations, and loyalty offers that build relationships and drive repeat purchases. The brands that use email well don’t just send newsletters. They use it to create personalized, timely touchpoints that turn one-time buyers into long-term customers.

ThoughtMetric makes it easy to see exactly how much revenue your email campaigns are driving. Instead of guessing or relying on vanity metrics like open or click rates, you can track actual purchases tied to each email send, flow, or automation. You'll see how email stacks up against other channels (both paid and organic), so you can make smarter decisions about where to invest your time and budget. Is email a dead channel? That’s not for us to decide. With the right data in front of you, you can look at your own performance and decide for yourself.

Book a ThoughtMetric demo here: https://thoughtmetric.io/demo