Last updated: May 2026. This guide has been substantially expanded with a new section reflecting the 2026 landscape.
2026 Update: What These Email Stats Look Like in Practice Right Now
I wrote this post back in 2023 and, honestly, the core argument still holds up: email marketing remains one of the most powerful tools in your arsenal. But the landscape has shifted enough that I felt I owed you an update before you go reading those stats and making decisions based on them. A lot has changed in three years, and some of what felt cutting-edge in 2023 is now just standard practice.
The biggest shift I have seen working with clients through 2025 and into 2026 is how Apple Mail Privacy Protection, which dropped back in 2021, has now fully worked its way through the data. Open rates as a metric are, for most senders, close to meaningless at this point. If you are still reporting to clients or stakeholders on open rates as your primary measure of success, please stop. Click-through rates, reply rates, and conversion attribution are where your attention needs to go. Tools like Klaviyo, ActiveCampaign, and Mailchimp have all built workarounds, but none of them are a clean fix.
AI-generated email copy is everywhere now, and your subscribers can feel it. I have been saying this to anyone who will listen: the brands winning in email right now are the ones that sound like a real human wrote the thing. Personalisation has moved well beyond inserting a first name into a subject line. Behavioural triggers, purchase history, and browse abandonment sequences are table stakes in 2026. If you are not doing that minimum, you are already behind.
Deliverability has also become a much bigger conversation. Google and Yahoo tightened their sender authentication requirements back in 2024, and the knock-on effect is that list hygiene is no longer optional housekeeping, it is critical infrastructure. If your list has not been cleaned in the past six months, that is the first thing to fix before you worry about any of the stats below.
So read the 2023 stats in this post as useful context and historical benchmarks, but treat them as a starting point rather than gospel. Email is still brilliant, still worth your investment, and still one of the highest-returning channels when you do it properly. The fundamentals have not changed. The execution absolutely has, and I will keep updating this post as things develop through 2026.
You've probably heard it a million times: "Email marketing is dead." But if you're here (and I'm glad you are), you know that's as far from the truth as Pluto is from the Sun.
While it's true that the marketing landscape shifts faster than a cheetah on a caffeine buzz, email marketing is one constant that's stuck around like your favourite pair of worn-in sneakers. And just like those sneakers, it's comfy, reliable, and always in style (if you do it right, of course).
The real beauty of email marketing? The stats back it up. But stats can be a little daunting. That's why I've done the deep-sea diving for you. I've sifted through the vast ocean of stats and fished out the 30 most jaw-dropping, game-changing email marketing statistics for 2023.
1. Email and eCommerce
Email marketing drives 20% of online store visits.
Takeaway: Emails aren’t just messages – they're driving directions to your online store. Design your email journeys accordingly.
2. Email Frequency Findings
Businesses that send two emails per month have the lowest average unsubscribe rate.
Takeaway: Quality over quantity – two engaging emails a month can be more effective than a daily deluge.
3. Gmail’s Gigantic User Base
With over 1.5 billion users, Gmail dominates the email client market.
Takeaway: Ensure your emails look great in Gmail. With its giant user base, you can't afford to overlook it.
4. Data-Driven Personalization
78% of consumers will engage with an offer if it has been personalized based on their previous interactions.
Takeaway: Your data isn't just numbers – it's the key to personalized experiences that can win over your subscribers.
5. Top Marketing Channel
59% of B2B marketers consider email as their most effective revenue generation channel.
Takeaway: Email marketing isn't just a channel, it's a revenue generator. Leverage it to amplify your B2B efforts.
6. Emails and Emojis
Subject lines with emojis have a higher open rate by 56%.
Takeaway: Emojis aren't just for texts – they can sprinkle some personality into your emails and boost engagement.
7. Marketing Automation Matters
Automated email campaigns account for 21% of email marketing revenue.
Takeaway: Set it but don't forget it. Automated campaigns can be a major revenue stream, but they still need care and feeding.
8. The Spam Challenge
Nearly 45% of all emails sent are marked as spam.
Takeaway: Ensure your emails aren't spammy. Maintain a clean mailing list and adhere to best practices to land in the right inbox.
9. Customer Lifecycle Emails
Lifecycle email marketing can lead to more than 20 times the transaction rates and revenue compared to standard bulk emails.
Takeaway: Target customers based on their lifecycle stage. It’s all about sending the right email at the right time.
10. Customer Retention via Email
80% of business professionals believe that email marketing increases customer retention.
Takeaway: Email isn't just a conversion tool, it's a retention tool. Use it to keep your customers close and loyal.
11. Interactive Emails Impact
Emails that incorporate interactive features can increase the click-to-open rate by 73%.
Takeaway: Engage your audience with interactive elements. Let your subscribers play a part in their email journey.
12. Email Accessibility
80% of users delete emails that aren't optimized for mobile.
Takeaway: Ensure your emails are mobile-friendly. Aesthetics matter, and so does accessibility.
13. The Power of Pictures
Emails with images have a 2.3 times higher click rate than text-only emails.
Takeaway: A picture is worth a thousand words, and apparently, a whole lot of clicks too.
14. Triggered Emails Triumph
Triggered email campaigns have 69% higher open rates and 164.6% higher click rates than non-triggered emails.
Takeaway: Timely and relevant emails perform best. Set up triggers to stay on point and on time.
15. The Tuesday Tactic
Tuesday is the best day of the week to send emails, with the highest open and click-through rates.
Takeaway: Pay attention to when your audience is most receptive. Timing is everything.
16. Video in Email Victory
Including a video in an email can increase click rates by 300%.
Takeaway: Don't shy away from using video in your emails. It can be the game-changer you're looking for.
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17. B2B Email Effectiveness
73% of B2B marketers say email is essential to their business.
Takeaway: Email isn't just for B2C. If you're in the B2B sector, email can be your secret weapon.
18. Customer Retention Reality
It's 5 times more expensive to acquire a new customer than to retain an existing one.
Takeaway: Don't overlook your existing customers in your email strategy. It pays to keep them happy.
19. Subject Line Significance
47% of email recipients open an email based on the subject line alone.
Takeaway: Your subject line is your first impression. Make it count.
20. Unsubscribe Rate Relevance
The average email unsubscribe rate across all industries is 0.1%.
Takeaway: Keeping unsubscribe rates low is critical. Keep providing value to keep your audience engaged.
21. ROI Renaissance
Email marketing remains a giant with an impressive ROI of 4200%.
Takeaway: Every dollar invested in email marketing has the potential to return $42. It's no surprise that email marketing is still seen as an ROI titan.
22. Subscription Sensation
70% of consumers prefer to receive business communications through email.
Takeaway: Email is your golden ticket to reaching your customers directly. Make sure you're putting your best foot, or rather, word forward.
23. Mobile Magnitude
Over 61.9% of all emails are opened on mobile devices.
Takeaway: Your emails need to look sharp on all screens, especially the small ones. Think mobile-first when crafting your campaigns.
24. Welcome Wins
Welcome emails boast an impressive open rate of 82%.
Takeaway: First impressions matter. A warm welcome can lead to loyal subscribers and repeat customers.
25. Influence of Personalization
Personalized email campaigns improve click-through rates by 14% and conversions by 10%.
Takeaway: Everyone loves a personal touch. Tailor your emails to fit your subscribers for that extra bit of magic.
26. Segmentation Success
Segmented email campaigns lead to a 760% increase in revenue.
Takeaway: Segmenting your email list is like having a personal chat with each subscriber. It's a lot more effective than yelling into a crowd.
27. Cart Abandonment Conquest
Cart abandonment emails have an average open rate of 45%.
Takeaway: Don't let abandoned carts be the end of the road. A well-crafted email can bring your customers right back.
28. Automation Advancement
Businesses using automation have seen conversion rates as high as 50%.
Takeaway: Automation isn't about being robotic. It's about sending the right message at the right time, every time.
29. Testing Triumphs
Marketers who A/B test their email campaigns see a 37% higher engagement rate.
Takeaway: Never stop testing. What works today might not work tomorrow. Stay agile, stay ahead.
30. Email vs Social
59% of marketers say email is their biggest source of ROI, outperforming social media.
Takeaway: Social media might be flashy, but email is your steadfast workhorse. Never underestimate its power.
Conclusion
And there you have it – 30 nuggets of email marketing gold, each one shimmering with potential to turn your strategies into solid ROI.
Remember, the power of email marketing lies in its adaptability. It's not about being the loudest in the inbox or sending the most emails. It's about understanding your audience, delivering value, and making every email count.
Email marketing might have a few grey hairs and laugh lines by now, but its charm is timeless. It remains a formidable tool in your marketing toolkit, waiting to unleash its potential.
What's changed by 2026: Email marketing and deliverability
Email marketing in 2026 looks materially different from earlier years. AI-generated content has flooded inboxes, deliverability standards have tightened, and privacy regulation has narrowed what you can do. Worth updating any strategy that was set before 2025.
AI-detected emails go to promotions or spam
Gmail, Outlook, and Apple Mail all now have AI content detection layers that filter emails matching AI-generated patterns into Promotions or Spam. Sender domain reputation matters more than ever because suspected-AI senders accumulate negative reputation faster. Emails written with specific names, real examples, and clear human voice perform substantially better than AI-templated outreach in 2026.
Authentication requirements have tightened
Since February 2024, Gmail and Yahoo have enforced strict authentication requirements for bulk senders: SPF, DKIM, DMARC, and one-click unsubscribe. By 2026 this enforcement extends to smaller senders too. If your sending domain isn't authenticated correctly, deliverability drops materially. If you're not sure, run a free DMARC analyser before sending another campaign.
List quality matters more than list size
A 5,000-subscriber list with 60% engagement outperforms a 50,000-subscriber list with 5% engagement on most business outcomes. Email service providers in 2026 actively suppress sending to disengaged subscribers, which means your inflated list size doesn't even reach the disengaged half. Suppress non-openers after 90 days. Welcome new subscribers with care. Build engagement, not just numbers.
Subject lines: human-voice beats curiosity-gap
Curiosity-gap subject lines ("You won't believe what happened next") were a 2018-2022 staple. By 2026 they pattern-match as spam triggers in many filters AND as AI-generated by readers. The strongest subject lines in 2026 are short, direct, and sound like a human said them: "Quick update on the deal," "Thinking about you," "Here's what I worked out."
Privacy regulation is broader than 2022
GDPR enforcement has tightened in the UK and EU. CCPA expanded in California. Multiple US states added consumer privacy regulation in 2024-2025. The practical upshot: explicit consent is now the default, double opt-in is recommended, and unsubscribe must be one-click. Compliance is no longer optional even for small senders.
Related: running a guest posting campaign
Want the complete version? Read where I break down email marketing.
