Annual Data Report 2026
Email Marketing
Tools in 2026
100+ quantitative statistics, benchmarks & trends shaping the global email marketing software landscape — from ROI to AI adoption.
$42
ROI per $1
spent
spent
4.73B
Email users
by 2026
by 2026
$17.9B
Market revenue
2026
2026
361.6B
Emails sent
daily
daily
Market Size & User Base
01 — Global Overview
Email marketing is the highest-ROI digital channel — delivering $36–$42 for every $1 spent, outperforming paid search, social ads, and display combined.
Litmus / Digital Applied, 2026
4.48B
Global email users in 2025, up from 4.37B in 2023, projected to reach 4.85B by 2027.
4.73B
Projected users by 2026, representing an addition of ~250M new email users year-over-year.
$17.9B
Global email marketing revenue in 2026, up from $12.33B in 2024 — a 45% leap in just two years.
$24.2B
Projected revenue by 2029, growing at 10.5% CAGR — making email one of the fastest-growing marketing channels.
$1.91B
Email marketing software market size in 2026, growing to $4.27B by 2034 at 10.6% CAGR.
13.8%
Software market CAGR 2025–2026, driven by AI adoption, automation, and omnichannel demand.
$36.3B
Market value by 2033
99%
Users check email daily
81%
Companies use email marketing
40×
More effective than social media
ROI & Performance Benchmarks
02 — Channel Comparison
ROI per $1 Spent by Industry
Performance Highlights
3600%
Average campaign ROI — email marketing campaigns deliver unparalleled returns across all industry segments.
122%
Median ROI across studies — approximately 4× higher than any other digital marketing channel.
18%
Companies achieving >$70 ROI per $1 invested — with advanced segmentation and automation strategies.
37%
Email revenue improvement from A/B testing alone — a high-leverage tactic for any size email program.
Open Rates & Engagement
03 — Industry Benchmarks
42.35%
Global average open rate in 2025 (based on 3.3M+ campaigns), though Apple MPP inflates these figures by ~4.5 percentage points.
2.62%
Average CTR across all industries — a more reliable metric than open rate post Apple Mail Privacy Protection adoption.
Open Rate by Industry (2026)
Faith / Religion
59.7%
Arts & Entertainment
51.2%
Childcare Services
47.2%
Government & Politics
28.8%
Nonprofits
26.8%
Healthcare / Medical
24.7%
Financial Services
23.1%
Retail & eCommerce
15.7%
AI & Automation Impact
04 — The AI Revolution in Email
AI-generated subject lines outperform human-written ones by 26% in open rates — and combined with dynamic send-time optimization, deliver an additional 14% lift.
Digital Applied, 2026
61%
Enterprise email programs using AI for at least one campaign element by end of 2026.
41%
Revenue boost from AI personalization — AI-driven programs generate 41% more revenue than manual ones (Salesforce).
26%
Open rate lift from AI subject lines vs. human-written alternatives in enterprise programs.
13.44%
CTR increase from AI personalization — far above the industry average CTR of 2.62%.
320%
More revenue from automated emails vs. non-automated ones — triggered flows punch well above their weight.
9/10
Marketers want AI to handle email marketing operations by 2026, signaling rapid industry-wide adoption.
Mobile, Design & Deliverability
05 — Technical Performance
Mobile & Design Stats
55%
Email opens on mobile in 2025, making mobile-first design a non-negotiable standard.
4.84%
CTR for emails with images vs 1.6% for text-only — visuals meaningfully lift engagement.
63%
Email teams using responsive design — hybrid/adaptive design is now the industry standard.
40%
Users viewing emails in dark mode — requiring specific design considerations for rendering.
2.7×
Higher CTR for AMP interactive emails vs static HTML — interactivity is a rising differentiator.
Deliverability & Authentication
89.1%
Inbox placement for authenticated domains (SPF + DKIM + DMARC fully configured).
44.2%
Inbox placement without DMARC — a 45 percentage point gap that destroys deliverability ROI.
340%
Year-over-year BIMI adoption growth — brands racing to display verified logos in inboxes.
10%
Open rate lift from BIMI badges — verified brand logos in Gmail and Apple Mail improve trust.
0.3%
Maximum spam complaint rate Google allows — exceeding this risks full domain blacklisting.
Segmentation & Personalization
06 — Targeting Performance
Segmented email campaigns generate 760% more revenue than non-segmented broadcast sends — making list segmentation the single highest-leverage tactic in email marketing.
Digital Applied / Litmus, 2026
78%
Marketers say segmentation is the most effective email strategy — above personalization and automation.
29%
Higher open rates from personalized emails — addressing recipients by name and behavior.
3.4×
Higher conversions for hyper-segmented micro-audiences (500–2,000 contacts) vs broad segments.
72%
Marketers use personalization as a core strategy — the second-most effective email tactic globally.
71%
Email automation adoption among marketers — automation campaigns consistently outperform manual blasts.
138%
More spending by email subscribers — shoppers receiving email marketing spend 138% more on average.
Consumer Behavior & Preferences
07 — Audience Insights
59%
Consumers influenced by marketing emails — more than half of all purchase decisions are shaped by email.
77%
Prefer email for brand communications over any other channel — email remains the most preferred B2C touchpoint.
63%
Open brand emails for discounts — promotional offers are the #1 reason consumers engage with marketing emails.
79%
Millennials prefer email from brands, compared to 57% of Gen Z — email dominates cross-generational preference.
58%
Check email while watching TV — multi-screening behavior creates additional touchpoint opportunities for marketers.
51%
Find email most convenient — over half of consumers say email is the easiest way for businesses to reach them.
50%
Made a purchase from email in the past year — nearly half of all email subscribers convert via email-driven paths.
80%
Prefer email for customer retention — marketers rate email above social media for retaining existing customers.
96%
Have unsubscribed due to email frequency — over-sending is the #1 reason for list attrition across all industries.
Timing, Frequency & Sending
08 — Optimal Campaign Scheduling
9–12am
Best time to send marketing emails — or 12–3pm, when open rates peak across most industries.
Tue–Thu
Best days for email campaigns — midweek sends consistently outperform Monday and Friday sends.
22%
Marketers send 2–3 emails per day, while 21% send daily and 12% send weekly — frequency varies widely.
73%
Of clicks occur within 1 hour of delivery — the first hour post-send is the most critical engagement window.
31.4%
Open rate for triggered emails vs 21.33% for campaigns — automation beats broadcast by 47%.
8.17%
Cart abandonment email CVR — the highest-converting automated email type in eCommerce.
68.6%
Open rate for welcome emails — onboarding sequences achieve far above-average engagement rates.
$5.81
Revenue per cart abandonment email sent — making cart recovery the highest-value email flow in eCommerce.
Email Client & Platform Stats
09 — Market Share & Infrastructure
51.52%
Apple Mail market share in 2025 — the dominant email client globally, driving privacy protection adoption.
26.72%
Gmail market share — serving 1.8 billion users globally, it remains the world's largest email service.
7.06%
Outlook market share — Microsoft's platform remains dominant in enterprise and B2B email environments.
1.8B
Gmail active users worldwide — making it the single largest email platform by active user count.
160B
Spam emails sent daily — nearly half of all global email traffic, underscoring deliverability challenges.
78%
Domains with DMARC records published in 2026, up from 51% in 2024 — authentication adoption surging.
B2B vs B2C Performance
10 — Channel Comparison
B2B Email
79%
B2B marketers cite email as their top content distribution channel
23%
Higher click-to-open ratios for B2B vs B2C emails
59%
B2C segment dominates email software market (59%+ revenue share)
B2C Email
81%
SMBs use email as primary customer acquisition channel
31%
Total eCommerce revenue directly attributable to email marketing
60%
Consumers have made a purchase directly after receiving a promotional email
Key Takeaway
In 2026, email marketing tools remain the highest-ROI channel in digital marketing. With AI adoption accelerating, mobile-first design essential, and deliverability standards tightening, brands that invest in segmentation, authentication, and automation will continue to widen the gap over competitors.
Data compiled by 9CV9
Sources: Litmus · Digital Applied · DemandSage
Salesforce · HubSpot · Mailchimp · 2026
Salesforce · HubSpot · Mailchimp · 2026