Email Marketing Statistics and Benchmarks for 2026: 40+ Verified Data Points

By Christoph Olivier | Published 2026-07-26 | Last updated 2026-07-26

This briefing collects verified email marketing benchmarks from the platforms and industry bodies that publish primary aggregate data: Mailchimp, GetResponse, Klaviyo, HubSpot, Litmus, the UK Data & Marketing Association (DMA), and the Gmail and Yahoo sender guidelines. Every figure below carries its number, the year the data covers, the geography, and a source link. Benchmark providers measure different populations and time periods, so their headline averages differ. We show the spread rather than a single “true” number, and we flag where Apple Mail Privacy Protection distorts open-rate data.

Executive summary

• Reported average email open rates for 2023 to 2026 sit between 31% and 42% depending on the provider, sample, and how much Apple Mail Privacy Protection inflates the figure.
• Litmus reports email drives an average return of $36 for every $1 spent. The older, widely quoted “$42” figure comes from the DMA’s 2019 UK Marketer Email Tracker (£42 per £1). The two are not directly comparable.
• Automated flows out-earn broadcast campaigns by a wide margin. Klaviyo reports flows generate about 41% of email revenue from just 5.3% of sends (ecommerce, 2026).
• Since February 2024, Gmail and Yahoo require bulk senders (about 5,000 messages a day to personal accounts) to authenticate with SPF, DKIM, and DMARC, offer one-click unsubscribe, and keep user-reported spam below 0.3%.
• Mobile has been the leading email-open environment since 2015, though device detection is now distorted by privacy features.
• Welcome and triggered emails consistently outperform newsletters. GetResponse recorded an 83.63% open rate on welcome emails in 2023.
• Engagement is front-loaded in time: GetResponse found 44.14% of all clicks happen within 60 minutes of send (2023).

Key findings

1. Email ROI averages $36 per $1 spent (global, Litmus). Source: Litmus, Email Marketing ROI.
2. Email ROI was £42 per £1 in the UK in 2019 (DMA Marketer Email Tracker 2019). Source: DMA (UK), Marketer Email Tracker, 2019.
3. All-user average open rate: 35.63%; average click rate: 2.62%; average unsubscribe rate: 0.22% (global, data last updated December 2023, Mailchimp). Source: Mailchimp, Email Marketing Benchmarks.
4. Government emails posted the highest average open rate at 40.55% and the highest click-through rate at 4.58% (Mailchimp, updated December 2023). Source: Mailchimp.
5. Vitamin supplement emails posted the lowest average open rate at 27.34% and lowest click-through rate at 1.19% (Mailchimp, updated December 2023). Source: Mailchimp.
6. GetResponse recorded a 39.64% average open rate, 3.25% click-through rate, 8.62% click-to-open rate, 2.33% bounce rate, and 0.15% unsubscribe rate across 4.4 billion messages sent in 2023 (global). Source: GetResponse, Email Marketing Benchmarks.
7. Klaviyo reported a 31% average campaign open rate, 1.69% click rate, and 0.16% placed-order rate across ecommerce senders (183,000 brands, published February 2026). Source: Klaviyo, Email Marketing Benchmarks 2026.
8. Klaviyo automated flows averaged a 5.58% click rate and 2.11% placed-order rate, roughly 3x and 13x the campaign averages (ecommerce, 2026). Source: Klaviyo.
9. Klaviyo flows produced about 41% of email revenue from 5.3% of sends (ecommerce, 2026). Source: Klaviyo.
10. Gmail and Yahoo require bulk senders to keep user-reported spam below 0.3% and recommend staying under 0.1% (effective February 2024, global). Source: Google, Email sender guidelines.
11. Bulk sender threshold: about 5,000 messages to personal Gmail accounts within 24 hours (effective February 2024). Source: Google, Email sender guidelines.
12. GetResponse welcome emails averaged an 83.63% open rate and 16.60% click-through rate (2023, global). Source: GetResponse.
13. 44.14% of all clicks and 21.2% of all opens occurred within 60 minutes of send (GetResponse, 2023). Source: GetResponse.
14. Mobile accounted for 55% of email opens in 2015, when Litmus analyzed 13 billion opens; mobile has remained the leading environment since. Source: Litmus, 13 billion opens analysis, 2015.
15. Apple Mail Privacy Protection preloads images and can inflate reported open rates; Apple Mail represents roughly 46% of email opens, per HubSpot’s benchmark review (2025). Source: HubSpot.

Open, click, bounce, and unsubscribe benchmarks by industry

Averages depend heavily on the measuring platform. Mailchimp aggregates across business types and last updated its public benchmark table in December 2023. GetResponse published 2023 data from senders with at least 500 contacts. HubSpot’s benchmark page aggregates several third-party datasets. Klaviyo measures ecommerce only. Read the differences as differences in sample, not as contradictions.

Mailchimp benchmarks by industry (global, data last updated December 2023)

Source: Mailchimp, Email Marketing Benchmarks by Industry (data last updated December 2023). Calculated from billions of emails; campaigns sent to at least 1,000 subscribers.

GetResponse benchmarks by industry (global, 2023 data)

Source: GetResponse, Email Marketing Benchmarks (2023 data; 4.4 billion messages from senders with at least 500 contacts). Overall bounce rate 2.33%; spam complaint rate under 0.01%.

HubSpot benchmark review, by industry (2025)

Source: HubSpot, “Email marketing benchmarks by industry” (2025). Open-rate table attributed to MailerLite; average click-through rate cited at 2.3% (Campaign Monitor); average click-to-open rate 5.3%; average bounce rate 2.48%; average unsubscribe rate 0.22%.

Klaviyo ecommerce benchmarks (published February 2026)

Source: Klaviyo, Email Marketing Benchmarks 2026 (ecommerce; over 183,000 brands). Campaign open rates ranged from 28.7% (mass merchant) to 33.1% (clothing & accessories); campaign click rates from 1.24% (health & beauty) to 2.03% (toys & hobbies).

Context and limitations for the industry tables

Three factors explain why “average open rate” ranges from 31% to 42% across these sources. First, sample: Klaviyo measures only ecommerce senders, which carry lower conversion-oriented open rates, while Mailchimp and GetResponse span all business types. Second, Apple Mail Privacy Protection, launched in 2021, automatically opens and preloads images for Apple Mail users, which inflates reported open rates. HubSpot notes Apple Mail accounts for roughly 46% of opens. Third, time period: Mailchimp’s public table last updated in December 2023, GetResponse reflects 2023, HubSpot 2025, and Klaviyo published in February 2026. Treat open rate as directional and use click-to-open and click rates for engagement comparisons.

Return on investment: $36 versus $42

The most cited email statistic is return on investment, and two numbers circulate. Litmus states email drives an average ROI of $36 for every $1 spent, higher than any other channel it measures. The older “$42” figure comes from the DMA’s UK Marketer Email Tracker 2019, which reported £42 in return for every £1 spent, up from about £32 the prior year.

These are not interchangeable. The DMA figure is UK-specific, denominated in pounds, and dated to 2019. The Litmus figure is more recent and widely cited in US contexts as “$36.” Both are averages across industries, list sizes, and program maturity, computed by dividing email-attributed revenue by email spend, so both smooth over large variation between senders. Report whichever you use with its source and year, and do not present £42 (2019) and $36 as a like-for-like decline.

Sources: Litmus, Email Marketing ROI; DMA (UK), Marketer Email Tracker 2019.

Litmus also reports a permission-practice finding: single opt-in programs showed roughly 80% higher return than double opt-in programs, though it notes this does not apply where regulation requires double opt-in.

Automation performance

Automated (triggered) messages consistently beat one-time broadcasts across every provider that separates them. The pattern is efficiency: a small share of automated sends produces a large share of revenue.

• Klaviyo automated flows averaged a 5.58% click rate and 2.11% placed-order rate, versus 1.69% and 0.16% for campaigns (ecommerce, 2026). Source: Klaviyo.
• Klaviyo flows produced about 41% of email revenue from just 5.3% of sends (ecommerce, 2026). Source: Klaviyo.
• GetResponse autoresponders averaged a 51.05% open rate and 5.59% click-through rate; triggered emails averaged 45.38% open and 5.02% click, both above the 40.08% open and 3.84% click for newsletters (2023). Source: GetResponse.
• GetResponse welcome emails averaged an 83.63% open rate, 16.60% click-through rate, and 19.85% click-to-open rate (2023). Source: GetResponse.

Mobile and device share

Mobile overtook other environments as the leading place people open email in 2015 and has led since. When Litmus analyzed 13 billion opens across 2015, mobile represented 55% of opens, webmail 26%, and desktop 19%. Precise current device splits are harder to state because Apple Mail Privacy Protection and Gmail image caching distort client detection. HubSpot’s 2025 review notes Apple Mail alone accounts for roughly 46% of opens, and that its privacy preloading inflates open counts. Treat any single current mobile-share percentage with caution and cite the measurement year.

Source: Litmus, “We Analyzed 13 Billion Opens” (data covers Jan 1 to Dec 31, 2015). Figures are dated; use as historical baseline, not a current reading.

Deliverability and the 2024 sender requirements

Since February 2024, Gmail and Yahoo enforce shared requirements for bulk senders. A bulk sender is defined as anyone sending close to 5,000 messages or more to personal Gmail accounts within a 24-hour period. The requirements are concrete and testable.

• Authenticate with SPF and DKIM, and publish a DMARC policy, with DMARC alignment between the From header and the SPF or DKIM domain. Source: Google, Email sender guidelines.
• Keep user-reported spam rate below 0.3%; Google recommends staying under 0.1%. Spam rate is calculated daily. Source: Google.
• Provide one-click unsubscribe (RFC 8058 List-Unsubscribe headers) on marketing and promotional messages, and process unsubscribe requests within 48 hours. Deadline to implement was June 1, 2024. Source: Google.
• Google escalated enforcement of non-compliant traffic in November 2025. Source: Google.

On inbox placement itself, vendor estimates vary and we could not confirm a single primary figure across sources. Validity’s deliverability benchmarks are commonly summarized as roughly one in six to one in seven emails failing to reach the inbox globally, implying an inbox placement rate in the low-to-mid 80s percent, but published summaries disagreed on the exact percentage and regional splits. We therefore report the sender-side thresholds above, which are authoritative and testable, rather than a contested placement percentage.

Send timing

Engagement is heavily front-loaded. GetResponse found that 21.2% of all opens and 44.14% of all clicks happen within the first 60 minutes after a message is sent (2023). Its data pointed to early morning and late afternoon send windows and modestly stronger midweek performance, with weekends underperforming. Send-time optimization matters less than the first-hour effect: most of a campaign’s engagement is decided quickly, so subject line and preheader carry disproportionate weight.

• 21.2% of opens and 44.14% of clicks occur within 60 minutes of send (GetResponse, 2023). Source: GetResponse.
• Messages with a preheader averaged 44.67% open and 4.54% click, versus 39.28% and 3.67% without (GetResponse, 2023). Source: GetResponse.

Original synthesis

1. The “average open rate” spread is a measurement artifact, not a trend

Placing four providers side by side, all-sender open rates run 31% (Klaviyo, ecommerce, 2026), 35.63% (Mailchimp, all users, Dec 2023), 39.64% (GetResponse, 2023), and 42.35% (HubSpot review, 2025). The 11-point spread tracks sample composition and Apple MPP inflation more than any real change in reader behavior. Logic: each provider measures a different population over a different window, and MPP inflates the two most recent, non-ecommerce figures. Inputs: Klaviyo, Mailchimp, GetResponse, HubSpot (all cited above). Limitation: without a common panel and date, these cannot be ranked as “better” programs.

2. The automation efficiency ratio

Using Klaviyo’s ecommerce data, automated flows generate about 41% of email revenue from 5.3% of sends. That is a revenue-per-send roughly 12x the rate of the remaining 94.7% of (mostly campaign) volume. Logic: 41/5.3 divided by 59/94.7 equals about 12.4. Inputs: Klaviyo Email Marketing Benchmarks 2026. Limitation: ecommerce only; flows benefit from high-intent triggers (cart, browse, welcome) that campaigns cannot replicate at scale.

3. The ROI “decline” from $42 to $36 is not a real decline

The two most-quoted ROI numbers cannot be differenced. £42 per £1 is a 2019 UK figure (DMA); $36 per $1 is a more recent, differently-sourced Litmus figure in dollars. Currency, country, year, and methodology all differ. Logic: comparing them requires a shared currency, geography, and time base, which none of the public sources provide. Inputs: DMA 2019; Litmus. Limitation: anyone presenting “$42 fell to $36” is misreading two independent studies.

Methodology

Source selection favored the platforms and bodies that publish primary aggregate data from their own sending populations (Mailchimp, GetResponse, Klaviyo, Litmus) and the authoritative sender-side rules (Google and Yahoo guidelines, DMA). Inclusion rule: a statistic was kept only when the fetched source stated the number and we could attach a year and geography. Exclusion rule: figures we could not verify against a fetched primary or credible aggregator were dropped. This is why we omit a single Validity inbox-placement percentage: the published summaries we found disagreed, so no defensible single number could be stated. Conflicts between providers are shown as ranges with the sample and date attached, not reconciled into one number. Known limitation: Apple Mail Privacy Protection (2021 onward) inflates open rates and distorts device detection, so open-rate comparisons across years and providers are directional. Date of last update: 2026-07-26.

Source quality ranking

Tier 1 (authoritative rules and official bodies): Google Email sender guidelines (Gmail/Yahoo bulk-sender requirements); DMA (UK) Marketer Email Tracker 2019.

Tier 2 (primary platform aggregate data): Mailchimp Email Marketing Benchmarks (billions of emails); GetResponse Email Marketing Benchmarks (4.4 billion messages, 2023); Klaviyo Email Marketing Benchmarks 2026 (183,000+ ecommerce brands); Litmus Email Marketing ROI and Litmus opens analysis.

Tier 3 (reputable aggregator/commentary): HubSpot benchmark review (which itself compiles MailerLite and Campaign Monitor data).

Journalist notes

Most quotable statistics

• Email drives an average ROI of $36 for every $1 spent (Litmus).
• Automated flows generate about 41% of email revenue from 5.3% of sends (Klaviyo, ecommerce, 2026).
• Gmail and Yahoo require bulk senders to keep spam complaints below 0.3% (effective February 2024).
• Welcome emails averaged an 83.63% open rate (GetResponse, 2023).
• 44.14% of all clicks happen within 60 minutes of send (GetResponse, 2023).

Data limitations

Open rates are inflated by Apple Mail Privacy Protection and are not comparable across providers or years without adjustment. The $36 and £42 ROI figures come from different countries, currencies, and years. Klaviyo figures are ecommerce only. Inbox-placement percentages from deliverability vendors varied across published summaries and are not stated here as a single number.

Downloadable dataset: recommended fields

metric_name, value, unit, industry, provider, sample_size, geography, year, measurement_note (e.g. MPP-affected), source_url.

Press summary (about 150 words)

Email marketing benchmarks for 2026 confirm two things: email remains the highest-ROI direct channel most vendors measure, and its headline numbers must be read with their sources attached. Litmus puts email ROI at $36 for every $1 spent; the older “$42” figure is a 2019 UK DMA number in pounds and is not a like-for-like comparison. Average open rates run from 31% (Klaviyo, ecommerce) to 42% (HubSpot review), a spread driven by sample differences and Apple Mail Privacy Protection inflation rather than real behavior change. Automation is the clearest lever: Klaviyo reports flows deliver about 41% of email revenue from 5.3% of sends. On deliverability, the 2024 Gmail and Yahoo rules are now the operative constraint, requiring authentication, one-click unsubscribe, and spam complaints under 0.3% for senders exceeding roughly 5,000 messages a day to personal accounts.

Suggested headlines

• Email Still Returns $36 Per Dollar, But the “$42” You Keep Quoting Is From 2019
• Automated Flows Deliver 41% of Email Revenue From 5% of Sends
• The 0.3% Rule: How Gmail and Yahoo Rewired Email in 2024
• Why “Average Open Rate” Ranges From 31% to 42% (And Why That’s Not a Trend)
• Welcome Emails Hit 84% Opens: The Case for Automation-First Email

Frequently asked questions

See the FAQ section of this asset for ten questions answered with the verified figures above.