Latest email marketing statistics and trends for 2026. ROI benchmarks, open rates, automation impact, AI adoption, and mobile optimization data from Litmus, HubSpot, Statista.
Latest email marketing statistics and trends for 2026. ROI benchmarks, open rates, automation impact, AI adoption, and mobile optimization data from Litmus, HubSpot, Statista.
Sarah Mitchell
April 7, 2026
Sarah Mitchell
April 7, 2026
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Email remains the most widely used communication channel globally, with billions of users actively checking their inboxes daily. These numbers demonstrate the massive reach available to email marketers and why email continues to drive business results across all industries.
Email is not a niche channel. More than half the planet actively uses it, giving marketers an unmatched addressable audience that no social platform comes close to matching at scale.
Daily email volume has grown at a compound annual rate of roughly 4% since 2018, showing that email traffic continues to rise year over year despite competition from messaging apps and social platforms.
User growth is steady and predictable, driven largely by expanding internet access in emerging markets. For marketers, a growing inbox audience means growing reach without the need to compete for shrinking organic visibility on other channels.
Email remains the most widely used communication channel globally, with billions of users actively checking their inboxes daily. These numbers demonstrate the massive reach available to email marketers and why email continues to drive business results across all industries.
Email is not a niche channel. More than half the planet actively uses it, giving marketers an unmatched addressable audience that no social platform comes close to matching at scale.
Daily email volume has grown at a compound annual rate of roughly 4% since 2018, showing that email traffic continues to rise year over year despite competition from messaging apps and social platforms.
User growth is steady and predictable, driven largely by expanding internet access in emerging markets. For marketers, a growing inbox audience means growing reach without the need to compete for shrinking organic visibility on other channels.
This sustained growth across the 2020-2026 period confirms that email adoption has not plateaued. For marketers building long-term channel strategies, the audience size continues to expand alongside the broader internet population.
Automated and AI-driven emails are a primary engine behind this volume growth. Marketers operating in a higher-volume inbox environment need strong deliverability practices and relevant content to stand out.
Inboxes are checked habitually and frequently. This level of daily engagement means email gives marketers repeated opportunities to reach an audience within a single day, a behavior pattern that most social and paid channels cannot replicate.
Despite the rise of Slack, WhatsApp, and social media, email volume has not declined. This 4% annual growth rate signals that email remains deeply embedded in both personal and professional communication worldwide.
This sustained growth across the 2020-2026 period confirms that email adoption has not plateaued. For marketers building long-term channel strategies, the audience size continues to expand alongside the broader internet population.
Automated and AI-driven emails are a primary engine behind this volume growth. Marketers operating in a higher-volume inbox environment need strong deliverability practices and relevant content to stand out.
Inboxes are checked habitually and frequently. This level of daily engagement means email gives marketers repeated opportunities to reach an audience within a single day, a behavior pattern that most social and paid channels cannot replicate.
Despite the rise of Slack, WhatsApp, and social media, email volume has not declined. This 4% annual growth rate signals that email remains deeply embedded in both personal and professional communication worldwide.
Understanding current engagement benchmarks helps you benchmark your campaign performance and identify improvement opportunities. These metrics include open rates, click-through rates, and click-to-open rates, though marketers are increasingly moving beyond open rates as a primary KPI.
MailerLite's benchmark study of 3.6 million campaigns found the average open rate climbed from 42.35% in 2024 to 43.46% in 2025. Marketers should treat this figure with caution, however, as Apple Mail Privacy Protection inflates reported opens by pre-loading tracking pixels regardless of whether a subscriber actually reads the email.
Measured across 3.6 million email campaigns, the average CTR rose slightly from 2.00% in 2024 to 2.09% in 2025. With open rate reliability diminished by privacy changes, click-through rate has become the primary engagement signal for most email teams, since it requires deliberate action from the recipient.
MailerLite's 2025 benchmark data shows CTOR rose from 5.63% in 2024 to 6.81% in 2025, with industry variation ranging from 2.96% to 14.82%. CTOR measures how persuasive your email content is once it has been opened, making it a stronger indicator of content quality than open rate alone.
According to Litmus data cited by EmailTooltester, Apple Mail is now the single largest email client by open share. Because Apple Mail Privacy Protection pre-loads tracking pixels on behalf of users, this level of market share means reported open rate figures are materially inflated for the majority of senders.
HubSpot notes that CTOR and CTR have become the primary performance indicators in a post-MPP world, since open rates now reflect email client behavior as much as subscriber intent. CTOR tells marketers what percentage of people who opened an email actually clicked something, making it the clearest measure of content relevance.
Understanding current engagement benchmarks helps you benchmark your campaign performance and identify improvement opportunities. These metrics include open rates, click-through rates, and click-to-open rates, though marketers are increasingly moving beyond open rates as a primary KPI.
MailerLite's benchmark study of 3.6 million campaigns found the average open rate climbed from 42.35% in 2024 to 43.46% in 2025. Marketers should treat this figure with caution, however, as Apple Mail Privacy Protection inflates reported opens by pre-loading tracking pixels regardless of whether a subscriber actually reads the email.
Measured across 3.6 million email campaigns, the average CTR rose slightly from 2.00% in 2024 to 2.09% in 2025. With open rate reliability diminished by privacy changes, click-through rate has become the primary engagement signal for most email teams, since it requires deliberate action from the recipient.
MailerLite's 2025 benchmark data shows CTOR rose from 5.63% in 2024 to 6.81% in 2025, with industry variation ranging from 2.96% to 14.82%. CTOR measures how persuasive your email content is once it has been opened, making it a stronger indicator of content quality than open rate alone.
According to Litmus data cited by EmailTooltester, Apple Mail is now the single largest email client by open share. Because Apple Mail Privacy Protection pre-loads tracking pixels on behalf of users, this level of market share means reported open rate figures are materially inflated for the majority of senders.
HubSpot notes that CTOR and CTR have become the primary performance indicators in a post-MPP world, since open rates now reflect email client behavior as much as subscriber intent. CTOR tells marketers what percentage of people who opened an email actually clicked something, making it the clearest measure of content relevance.
Email marketing consistently delivers the highest return on investment among digital marketing channels. These statistics show the tangible financial impact of email campaigns and why businesses of all sizes prioritize this channel.
Email marketing consistently delivers an average return of $36 for every dollar invested, making it the highest-ROI channel in digital marketing and outperforming SEO, paid search, and social media ads. This benchmark is drawn from surveys of marketing leaders across industries and has held firm even as digital ad costs rise.
More than half of email marketers saw their ROI at least double in a single year, with an additional 5.7% reporting their ROI quadrupled over the same period. This rapid growth reflects the compounding gains from better segmentation, automation, and deliverability practices.
While the industry average sits at $36 per $1 spent, the top tier of email marketers are generating more than $70 in return per dollar, demonstrating the ceiling for well-optimized programs that combine personalization, automation, and strong list hygiene.
Omnisend's analysis of nearly 24 billion emails sent in 2024 found that behavior-triggered automated messages produced a disproportionate share of revenue, earning 16 times more per send than standard scheduled campaigns. Abandoned cart, welcome, and browse abandonment flows accounted for 87% of all automated orders.
Nearly 6 in 10 consumers acknowledge that email marketing directly shapes what they buy, giving brands a measurable, direct line from inbox to checkout. This influence rate makes email one of the few channels where marketers can draw a clear connection between message and revenue.
The global email marketing market has more than doubled in value over seven years and continues to grow at a compound annual growth rate of 13.3%. This expansion reflects increasing business investment in email platforms, AI-powered automation, and personalization tools.
Email marketing consistently delivers the highest return on investment among digital marketing channels. These statistics show the tangible financial impact of email campaigns and why businesses of all sizes prioritize this channel.
Email marketing consistently delivers an average return of $36 for every dollar invested, making it the highest-ROI channel in digital marketing and outperforming SEO, paid search, and social media ads. This benchmark is drawn from surveys of marketing leaders across industries and has held firm even as digital ad costs rise.
More than half of email marketers saw their ROI at least double in a single year, with an additional 5.7% reporting their ROI quadrupled over the same period. This rapid growth reflects the compounding gains from better segmentation, automation, and deliverability practices.
While the industry average sits at $36 per $1 spent, the top tier of email marketers are generating more than $70 in return per dollar, demonstrating the ceiling for well-optimized programs that combine personalization, automation, and strong list hygiene.
Omnisend's analysis of nearly 24 billion emails sent in 2024 found that behavior-triggered automated messages produced a disproportionate share of revenue, earning 16 times more per send than standard scheduled campaigns. Abandoned cart, welcome, and browse abandonment flows accounted for 87% of all automated orders.
Nearly 6 in 10 consumers acknowledge that email marketing directly shapes what they buy, giving brands a measurable, direct line from inbox to checkout. This influence rate makes email one of the few channels where marketers can draw a clear connection between message and revenue.
The global email marketing market has more than doubled in value over seven years and continues to grow at a compound annual growth rate of 13.3%. This expansion reflects increasing business investment in email platforms, AI-powered automation, and personalization tools.
Mobile devices now account for the majority of email opens, making responsive design and mobile-first strategies critical for campaign success. Users expect fast-loading, well-designed emails regardless of the device they use.
Mobile has crossed the majority threshold, with some audience segments reporting over 80% mobile opens. This makes mobile-first email design a baseline requirement, not a differentiator, for any campaign built to perform in 2025 and beyond.
Recipients give poorly formatted emails almost no grace period. With average mobile email reading time clocking in at just 10 seconds, a non-responsive layout can wipe out an entire campaign's engagement before a single click is recorded.
Switching from a static layout to a responsive design delivers a measurable, immediate lift in click performance. The improvement comes from properly sized buttons, scaled images, and touch-friendly layouts that reduce friction for smartphone users.
Mobile email access is near-universal. Even users who primarily work on desktops still check email on their phones during the day, which means a poor mobile rendering can damage engagement across virtually your entire list.
Morning mobile email habits are deeply entrenched. For email marketers, this creates a high-value engagement window in the early hours where a well-timed, mobile-optimized send can capture attention before any other channel does.
Fewer than half of businesses currently verify how their emails actually display on mobile clients before sending. This gap represents a significant and avoidable risk, particularly given that over half of all opens now happen on smartphones.
Mobile devices now account for the majority of email opens, making responsive design and mobile-first strategies critical for campaign success. Users expect fast-loading, well-designed emails regardless of the device they use.
Mobile has crossed the majority threshold, with some audience segments reporting over 80% mobile opens. This makes mobile-first email design a baseline requirement, not a differentiator, for any campaign built to perform in 2025 and beyond.
Recipients give poorly formatted emails almost no grace period. With average mobile email reading time clocking in at just 10 seconds, a non-responsive layout can wipe out an entire campaign's engagement before a single click is recorded.
Switching from a static layout to a responsive design delivers a measurable, immediate lift in click performance. The improvement comes from properly sized buttons, scaled images, and touch-friendly layouts that reduce friction for smartphone users.
Mobile email access is near-universal. Even users who primarily work on desktops still check email on their phones during the day, which means a poor mobile rendering can damage engagement across virtually your entire list.
Morning mobile email habits are deeply entrenched. For email marketers, this creates a high-value engagement window in the early hours where a well-timed, mobile-optimized send can capture attention before any other channel does.
Fewer than half of businesses currently verify how their emails actually display on mobile clients before sending. This gap represents a significant and avoidable risk, particularly given that over half of all opens now happen on smartphones.
Artificial intelligence and automation are transforming how marketers create, personalize, and send campaigns. These technologies enable marketers to deliver more relevant content at scale while reducing manual effort and improving engagement.
AI adoption in email marketing has crossed the majority threshold, with nearly two-thirds of marketers actively using AI tools for campaigns. This signals that AI is no longer an edge tactic but a mainstream component of how email teams operate.
Email is the primary use case for AI across marketing functions, with nearly nine in ten AI-adopting organizations directing the technology at email campaigns. This makes email the de facto entry point for AI adoption in marketing stacks.
The Litmus State of Email 2025 report, based on 692 global marketing professionals surveyed in early 2025, found that nearly half of all email marketers now rely on generative AI to write campaign copy. This makes content creation the single most common AI application in email marketing.
The Litmus State of Email 2025 report identified a 340% year-over-year surge in marketers using AI to generate images for emails. This dramatic shift reflects how AI is moving beyond copywriting into visual production, shortening email creation cycles significantly.
According to the Litmus State of Email 2025 report, the majority of email marketers expect significant AI automation of their workflows within one year. An additional 18% expect AI to handle 50 to 75% of their email marketing tasks, pointing to a rapid shift in how campaigns are built and managed.
Send-time optimization is the most widely deployed AI application in email marketing, ahead of copy generation and personalization. Marketers using AI-driven send timing report improved open and click rates by reaching subscribers when they are most likely to engage.
Artificial intelligence and automation are transforming how marketers create, personalize, and send campaigns. These technologies enable marketers to deliver more relevant content at scale while reducing manual effort and improving engagement.
AI adoption in email marketing has crossed the majority threshold, with nearly two-thirds of marketers actively using AI tools for campaigns. This signals that AI is no longer an edge tactic but a mainstream component of how email teams operate.
Email is the primary use case for AI across marketing functions, with nearly nine in ten AI-adopting organizations directing the technology at email campaigns. This makes email the de facto entry point for AI adoption in marketing stacks.
The Litmus State of Email 2025 report, based on 692 global marketing professionals surveyed in early 2025, found that nearly half of all email marketers now rely on generative AI to write campaign copy. This makes content creation the single most common AI application in email marketing.
The Litmus State of Email 2025 report identified a 340% year-over-year surge in marketers using AI to generate images for emails. This dramatic shift reflects how AI is moving beyond copywriting into visual production, shortening email creation cycles significantly.
According to the Litmus State of Email 2025 report, the majority of email marketers expect significant AI automation of their workflows within one year. An additional 18% expect AI to handle 50 to 75% of their email marketing tasks, pointing to a rapid shift in how campaigns are built and managed.
Send-time optimization is the most widely deployed AI application in email marketing, ahead of copy generation and personalization. Marketers using AI-driven send timing report improved open and click rates by reaching subscribers when they are most likely to engage.
Proper segmentation and frequency control reduce unsubscribe rates and improve engagement. Data shows that marketers are improving list management practices, resulting in better sender reputation and lower churn.
Segmenting campaigns by subscriber behavior, demographics, or purchase history is one of the highest-leverage tactics in email marketing. Campaign Monitor's data shows this revenue lift is achievable when targeting replaces broadcast sending.
These figures illustrate how much relevance affects subscriber behavior. When recipients receive content matched to their interests or stage in the buyer journey, they are significantly more likely to open and act on it.
MailerLite's benchmark report, based on over 3.6 million campaigns, attributes this jump largely to Gmail's updated one-click unsubscribe feature, which makes it easier for subscribers to opt out without opening the email. While the absolute number remains small, marketers should treat this shift as a prompt to sharpen segmentation and relevance.
Frequency control is one of the most direct levers for reducing list churn. This finding reinforces why email preference centers and engagement-based sending cadences are not optional extras but core list management tools.
Higher send frequency does not compound returns. When promotional volume exceeds subscriber tolerance, opt-out rates climb sharply. Matching cadence to audience engagement level, rather than campaign calendars, protects sender reputation and long-term deliverability.
Near-universal adoption of segmentation among experienced practitioners reflects its proven impact on deliverability, engagement, and revenue. Brands that segment avoid the content-audience mismatch that drives both unsubscribes and spam complaints.
Proper segmentation and frequency control reduce unsubscribe rates and improve engagement. Data shows that marketers are improving list management practices, resulting in better sender reputation and lower churn.
Segmenting campaigns by subscriber behavior, demographics, or purchase history is one of the highest-leverage tactics in email marketing. Campaign Monitor's data shows this revenue lift is achievable when targeting replaces broadcast sending.
These figures illustrate how much relevance affects subscriber behavior. When recipients receive content matched to their interests or stage in the buyer journey, they are significantly more likely to open and act on it.
MailerLite's benchmark report, based on over 3.6 million campaigns, attributes this jump largely to Gmail's updated one-click unsubscribe feature, which makes it easier for subscribers to opt out without opening the email. While the absolute number remains small, marketers should treat this shift as a prompt to sharpen segmentation and relevance.
Frequency control is one of the most direct levers for reducing list churn. This finding reinforces why email preference centers and engagement-based sending cadences are not optional extras but core list management tools.
Higher send frequency does not compound returns. When promotional volume exceeds subscriber tolerance, opt-out rates climb sharply. Matching cadence to audience engagement level, rather than campaign calendars, protects sender reputation and long-term deliverability.
Near-universal adoption of segmentation among experienced practitioners reflects its proven impact on deliverability, engagement, and revenue. Brands that segment avoid the content-audience mismatch that drives both unsubscribes and spam complaints.
Interactive email elements and privacy-first strategies are reshaping modern email marketing. These trends reflect changing consumer expectations and the shift toward more trustworthy, engaging email experiences.
According to Litmus's 2025 State of Email report, interactive element adoption has reached near-universal levels among email marketers. Elements range from polls and image carousels to countdown timers and embedded forms, reflecting a broad shift from passive email delivery toward active, in-inbox participation.
Interactive content such as polls, quizzes, and embedded videos drives significantly more engagement than traditional static layouts. For email marketers focused on improving downstream conversions, this performance gap makes interactivity one of the highest-leverage design decisions available.
Privacy anxiety among subscribers has grown substantially, and email marketers who clearly communicate how they collect and use data are better positioned to build trust and sustain engagement. Transparent data practices are no longer optional; they directly influence open rates, list retention, and brand loyalty.
Litmus client market share data confirms that more than half of all email opens now occur on devices with Apple MPP activated. Because MPP preloads email content through proxy servers, senders receive an open signal regardless of whether a recipient actually viewed the message, inflating open rate data and pushing marketers toward click, reply, and conversion metrics instead.
Surveys cited in the Clean Email 2025 to 2026 industry report show that privacy awareness is reshaping inbox behavior at scale. Privacy-focused providers like Proton Mail surpassed 100 million accounts by 2023, while regulatory pressure from GDPR, CCPA, and the European AI Act is pushing both individual users and enterprises toward privacy-first email architectures.
Interactive email elements and privacy-first strategies are reshaping modern email marketing. These trends reflect changing consumer expectations and the shift toward more trustworthy, engaging email experiences.
According to Litmus's 2025 State of Email report, interactive element adoption has reached near-universal levels among email marketers. Elements range from polls and image carousels to countdown timers and embedded forms, reflecting a broad shift from passive email delivery toward active, in-inbox participation.
Interactive content such as polls, quizzes, and embedded videos drives significantly more engagement than traditional static layouts. For email marketers focused on improving downstream conversions, this performance gap makes interactivity one of the highest-leverage design decisions available.
Privacy anxiety among subscribers has grown substantially, and email marketers who clearly communicate how they collect and use data are better positioned to build trust and sustain engagement. Transparent data practices are no longer optional; they directly influence open rates, list retention, and brand loyalty.
Litmus client market share data confirms that more than half of all email opens now occur on devices with Apple MPP activated. Because MPP preloads email content through proxy servers, senders receive an open signal regardless of whether a recipient actually viewed the message, inflating open rate data and pushing marketers toward click, reply, and conversion metrics instead.
Surveys cited in the Clean Email 2025 to 2026 industry report show that privacy awareness is reshaping inbox behavior at scale. Privacy-focused providers like Proton Mail surpassed 100 million accounts by 2023, while regulatory pressure from GDPR, CCPA, and the European AI Act is pushing both individual users and enterprises toward privacy-first email architectures.
All statistics on this page are sourced from the following 37 references.
All statistics on this page are sourced from the following 37 references.
Learn the exact metrics and formulas to calculate email marketing ROI. Track revenue, costs, and conversions to prove campaign performance.
Learn the exact metrics and formulas to calculate email marketing ROI. Track revenue, costs, and conversions to prove campaign performance.
MailerLite's benchmark data across 3.6 million campaigns found the unsubscribe rate jumped sharply year over year. The primary driver was Gmail's mid-2025 rollout of its Manage Subscriptions feature, which allows users to unsubscribe from a sender with a single tap without ever opening an email, and can generate multiple unsubscribe requests from a single user action.
MoEngage's analysis of 17.3 billion emails found that personalized, behavior-triggered campaigns consistently outperform generic batch sends across every industry. For retail and e-commerce specifically, the conversion rate lift from behavior-based personalization versus broadcast is 16 times, making segmentation one of the highest-return levers in email marketing.
MailerLite's 2025 industry breakdown shows non-profits consistently outperform the all-industry average of 43.46%, benefiting from mission-driven content and highly opted-in audiences. By contrast, e-commerce sits at a 32.67% open rate and 1.07% click rate, reflecting higher list volume but lower per-subscriber engagement.
Nearly 9 in 10 senior marketers rank email as a business-critical channel, a figure that has remained consistently high across years of survey data. This confidence is backed by measurable revenue attribution, low cost per send, and strong audience ownership compared to paid or social channels.
Marketers who implement AI-powered personalization in their email programs report measurably stronger commercial performance. The revenue lift of 41% combined with a 13.44% CTR increase demonstrates that AI personalization goes beyond efficiency, directly improving the bottom line.
A Statista survey of US and EU marketers found that a majority now believe AI-powered email marketing outperforms conventional methods. This growing confidence is reflected in budget trends, with 65% of marketing leaders planning to increase investment in AI and automation tools in 2025, per HubSpot.
MailerLite's benchmark data across 3.6 million campaigns found the unsubscribe rate jumped sharply year over year. The primary driver was Gmail's mid-2025 rollout of its Manage Subscriptions feature, which allows users to unsubscribe from a sender with a single tap without ever opening an email, and can generate multiple unsubscribe requests from a single user action.
MoEngage's analysis of 17.3 billion emails found that personalized, behavior-triggered campaigns consistently outperform generic batch sends across every industry. For retail and e-commerce specifically, the conversion rate lift from behavior-based personalization versus broadcast is 16 times, making segmentation one of the highest-return levers in email marketing.
MailerLite's 2025 industry breakdown shows non-profits consistently outperform the all-industry average of 43.46%, benefiting from mission-driven content and highly opted-in audiences. By contrast, e-commerce sits at a 32.67% open rate and 1.07% click rate, reflecting higher list volume but lower per-subscriber engagement.
Nearly 9 in 10 senior marketers rank email as a business-critical channel, a figure that has remained consistently high across years of survey data. This confidence is backed by measurable revenue attribution, low cost per send, and strong audience ownership compared to paid or social channels.
Marketers who implement AI-powered personalization in their email programs report measurably stronger commercial performance. The revenue lift of 41% combined with a 13.44% CTR increase demonstrates that AI personalization goes beyond efficiency, directly improving the bottom line.
A Statista survey of US and EU marketers found that a majority now believe AI-powered email marketing outperforms conventional methods. This growing confidence is reflected in budget trends, with 65% of marketing leaders planning to increase investment in AI and automation tools in 2025, per HubSpot.
