20 email marketing statistics that matter: 2026 edition
Email is still the highest-ROI channel in marketing - but only when it lands. These 20 sourced statistics show the market size, returns, benchmarks, and automation and personalization levers that separate elite email programs from average ones.
Email marketing is the rare channel that keeps getting more valuable as it gets older. While attention fragments across social platforms and paid acquisition costs climb, email quietly returns more per dollar than any other channel - and reaches a bigger audience than all of them combined. In 2026 it remains the backbone of digital revenue.
The numbers behind that staying power are worth knowing precisely. How large is the audience, what does email actually return, what open and click rates should you benchmark against, and where is the real money hiding? The answers point consistently toward automation, segmentation, and personalization - and toward the mobile and AI shifts reshaping how email gets made and read.
Here are 20 sourced email marketing statistics for 2026 - covering market size and users, ROI, open and click benchmarks, automation revenue, segmentation and personalization, and the mobile and AI trends defining the channel - with what each one means for your program.
Key takeaways
- There were 4.6 billion email users worldwide in 2025, projected to reach 4.9 billion by 2028.
- Email returns an industry-average $36 to $42 for every $1 spent - higher than any other channel.
- Omnisend ecommerce merchants averaged $79 in revenue per $1 in 2025.
- The all-industry average is a 35.63% open rate and 2.62% click rate.
- Automated emails drive 37% of email sales from just 2% of volume.
- Segmented campaigns drive 30% more opens and 50% more clickthroughs.
Market size and the email audience
1. There were 4.6 billion email users worldwide in 2025, projected to reach 4.9 billion by 2028
Email's audience keeps expanding: HubSpot reports 4.6 billion email users in 2025, on track for 4.9 billion by 2028. That is more than half the planet and a larger reach than any single social network - the fundamental reason email remains the most durable marketing channel.
2. Over 361.6 billion emails are sent and received per day, up 4.3% year over year
The sheer traffic is staggering: DemandSage reports more than 361.6 billion emails sent and received daily, a 4.3% increase year over year. Volume is still growing, which means the inbox is more crowded every year - and standing out inside it is harder, not easier.
3. Global email marketing revenue is forecast to hit $17.9 billion by 2027
The industry itself is booming. DemandSage projects global email marketing revenue reaching $17.9 billion by 2027, up from roughly $12.33 billion in 2024. Marketers are investing more in the channel precisely because the returns justify it.
4. More than 70% of people across all age groups use email monthly
Email is not a generational channel - it is a universal one. HubSpot found more than 70% of people across all age groups use email monthly. Whether the audience is Gen Z or retirees, email reaches them, which makes it uniquely reliable for broad-based campaigns.
The return on every dollar
5. 35% of marketers earn $10 to $36 per $1, 30% earn $36 to $50, and 5% earn over $50
Litmus's ROI breakdown shows a wide spread: 35% of marketers earn $10 to $36 per $1 spent, 30% earn $36 to $50, and 5% earn more than $50. The gap between the middle and the top is largely a gap in execution - and in whether messages actually reach the inbox.
6. Email returns an industry-average $36 to $42 for every $1 spent
Across benchmarks, the headline number holds: Omnisend reports email delivers an average $36 to $42 in return for every $1 spent. No other marketing channel comes close, which is why email remains the first place sophisticated marketers invest.
7. Omnisend ecommerce merchants averaged $79 in revenue per $1 in 2025
For ecommerce specifically, the returns run even higher. Omnisend found its merchants averaged $79 in revenue for every $1 spent in 2025. Well-run ecommerce email - powered by automation and segmentation - roughly doubles the already-strong industry average.
See where your email lands across providers →
Open and click benchmarks
8. The all-industry average is a 35.63% open rate and a 2.62% click rate
Mailchimp's cross-industry benchmarks put the average at a 35.63% open rate and a 2.62% click rate. These are the numbers to measure your own campaigns against - though open rates now carry noise from Apple Mail Privacy Protection, making clicks the more reliable signal.
9. Government emails open highest at 40.55%, vitamins and supplements lowest at 27.34%
Averages hide wide sector variation. Mailchimp found government email opens highest at 40.55% and vitamin and supplement email lowest at 27.34%. Benchmark against your industry, not the global average - a "low" open rate in one sector is a strong one in another.
10. GetResponse data shows a 39.64% open rate, 3.25% CTR, and 8.62% click-to-open rate
GetResponse's 2024 analysis of its large sender base found a 39.64% average open rate, 3.25% click-through rate, and 8.62% click-to-open rate. The click-to-open rate - clicks as a share of opens - is the cleanest measure of how compelling your content is once it is seen.
11. The average click-through rate across industries is about 2.5%
HubSpot reports an average click-through rate of roughly 2.5% across industries, a metric that is resistant to Mail Privacy Protection distortion. Because opens are increasingly inflated by automated prefetching, click-through rate has become the benchmark that actually reflects engagement.
Where automation makes the money
12. Automated emails drive 37% of email sales from just 2% of send volume
The single most important number in email marketing: Omnisend found automated emails drive 37% of all email sales from only 2% of email volume. Triggered, behavior-based messages are wildly more efficient than broadcast sends - which is where most of the untapped revenue in email hides.
13. Cart, welcome, and browse-abandonment emails account for 87% of automated orders
Within automation, three flows dominate. Omnisend reports cart, welcome, and browse-abandonment emails generate 87% of all automated orders. If you build only three automations, build these - they capture the overwhelming majority of automated revenue.
14. Triggered emails average 45.38% open and 5.02% CTR versus 40.08% and 3.84% for newsletters
Triggered messages beat broadcasts on every metric. GetResponse found triggered emails average 45.38% open and 5.02% click-through, versus 40.08% and 3.84% for newsletters. Relevance and timing - the hallmarks of automation - translate directly into higher engagement.
15. Welcome emails average an 83.63% open rate and a 16.60% click-through rate
The welcome email is the highest-performing message you will ever send. GetResponse found welcome emails average an 83.63% open rate and a 16.60% click-through rate - multiples of any regular campaign. New subscribers are at peak attention, and the welcome message is where that attention is either captured or lost.
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Segmentation and personalization
16. Segmented campaigns drive 30% more opens and 50% more clickthroughs
Segmentation is one of the highest-leverage moves in email. HubSpot found segmented campaigns drive 30% more opens and 50% more clickthroughs than unsegmented sends. Dividing a list by behavior or attributes and tailoring the message lifts every downstream metric.
17. 78% of marketers say subscriber segmentation is their most effective strategy
Marketers agree on what works. HubSpot reports 78% of marketers name subscriber segmentation as their single most effective email strategy - ahead of every other tactic. The consensus is clear: sending the right message to the right segment beats sending more messages to everyone.
18. 53% of marketers use basic name personalization in email copy
Personalization often starts simple. HubSpot found 53% of marketers use basic name personalization in email copy. It is table stakes rather than a differentiator - the real gains come from pairing it with the behavioral segmentation that top performers rely on.
Mobile and the AI shift
19. 41% of email views occur on mobile, and 75% of Gmail users read on their phones
Email is read on the go. HubSpot reports 41% of email views happen on mobile devices, and 75% of Gmail users check email on their phones. Mobile-first design - short subject lines, single-column layouts, tappable buttons - is no longer optional; it is where most of your audience actually reads.
20. Over 80% of marketers now use AI for email content creation
AI has moved from novelty to norm. HubSpot found more than 80% of marketers now use AI for email content creation. As AI-assisted copy becomes the baseline, differentiation shifts back to strategy - segmentation, timing, and reaching the inbox - rather than the words alone.
What this means: the email marketing playbook
Invest in the channel that pays back most. Email returns $36 to $42 per $1 on average and up to $79 per $1 in ecommerce - higher than any alternative. With 4.6 billion users and 70%+ of every age group using email monthly, it reaches a bigger, more universal audience than any social platform. The market is growing toward $17.9 billion by 2027 for a reason: the returns are real and durable.
Automate the flows that carry the revenue. Automated emails drive 37% of sales from just 2% of volume, and cart, welcome, and browse-abandonment messages produce 87% of automated orders. If you do one thing this quarter, build those three flows - triggered emails outperform newsletters on every metric, and welcome emails alone open at 83.63%.
Segment before you send more. Segmented campaigns earn 30% more opens and 50% more clicks, and 78% of marketers call segmentation their most effective strategy. Basic name personalization is table stakes at 53% adoption; the real lift comes from dividing your list by behavior and intent. Sending less to more precisely chosen people beats blasting everyone.
Design mobile-first and let AI assist, not decide. With 41% of views on mobile and 75% of Gmail read on phones, a desktop-only layout loses most of its audience. And with 80%+ of marketers using AI for content, the words are no longer where you win - strategy, timing, and targeting are. Use AI to move faster, then compete on relevance.
None of it matters if the email never lands. Every benchmark above assumes your message reaches the inbox - open rates, click rates, and ROI all collapse to zero for mail filtered to spam. Before you optimize copy or build another automation, test your real inbox placement so the audience you have worked to earn actually sees what you send.