Email marketing remains one of the highest-ROI channels in digital marketing, with industry research from Litmus pegging average returns at about $36 for every $1 spent. But averages hide the real story. A new Email Marketing Benchmarks 2026 report from Selzy, released in September 2026, analyzed 388,431 campaigns and 602.2 million emails — and the findings upend several “best practices” marketers still swear by.
Smaller campaigns dramatically outperformed mass blasts. Automation crushed manual sends. And the most popular send time turned out to be one of the worst. Here is what the data actually says, and how to use it.
The headline numbers: average open and click rates
Across the entire Selzy dataset, the platform-wide averages were:
- Average open rate: 11.0%
- Average click-through rate (CTR): 1.2%
Those numbers look low compared to benchmarks from Mailchimp (19.21% open and 2.44% CTR on its MPP-adjusted 2026 dataset) or Campaign Monitor — and there is an honest reason. Selzy’s study found that a flood of casino and betting campaigns distorted its averages: that segment grew from roughly 80 campaigns per month in August 2025 to 61,923 in June 2026 (a roughly 774x increase), and many of those campaigns targeted only 12–27 recipients each. The takeaway: always compare your numbers to benchmarks from senders like you, not a global mean.
That said, the relative differences inside the study — small vs. large, automated vs. manual, Tuesday vs. Friday — are where the real value lives.
Small beats big: list size changes everything
The single strongest finding in the report was the relationship between campaign size and engagement:
- Campaigns sent to fewer than 100 recipients: 23.6% open rate, 4.8% CTR
- Campaigns sent to more than 100,000 recipients: 5.7% open rate, 0.4% CTR
That is roughly 4x more opens and 12x more clicks for the smallest sends. Segmented, tightly targeted messages earn attention because they feel personal; mass blasts compete with every other bulk email in the inbox.
What to do: stop judging every send against one list-wide benchmark. Segment by behavior and interest — new subscribers, repeat buyers, dormant readers — and benchmark each segment separately. A 4.8% CTR on a segmented send is not a fluke; it is what relevance looks like.
Automation wins: 5.3x more clicks than mass campaigns
Triggered and automated emails — welcome sequences, cart-abandonment reminders, post-purchase follow-ups — blew past manual campaigns:
- Automated emails: 31.4% open rate, 6.4% CTR
- Mass campaigns: 11.0% open rate, 1.2% CTR
Automated messages were opened nearly three times as often and generated 5.3x more clicks. The mechanism is obvious once you see it: automation arrives at the right moment, tied to something the subscriber actually did, instead of interrupting at a marketer’s convenience.
What to do: if you run any list at all, prioritize three automations first — a welcome series, an abandoned-cart flow (for stores), and a re-engagement sequence for subscribers who go quiet. These run on autopilot and consistently outperform broadcast email.
Send timing: Tuesday wins, Friday loses
Timing data from the study contradicts what most marketers do:
- The most popular send window — 2 PM to 3 PM, with roughly 109 million emails sent — produced below-average opens (8.8% and 7.8% at those hours).
- 8 AM and 12 PM delivered the strongest hourly opens, reaching 12.9%.
- Tuesday was the strongest weekday: 12.6% open rate, 1.44% CTR.
- Friday had the worst delivery rate of any weekday at 87.3%, versus roughly 91–92% on other days.
What to do: test morning sends (8 AM subscriber-local time) and Tuesday campaigns against your current schedule. And watch your delivery rate on Fridays — lower deliverability at week’s end may mean your emails are landing late or not at all.
Subject lines: questions beat emojis
Common subject-line tricks did not survive the data:
- Subject lines with emojis: 0.75% CTR vs. 1.68% without them
- Subjects with numbers or percentages: also underperformed
- Question-style subject lines: 12.4% open rate and 1.74% CTR — the clear winner
Curiosity works better than decoration. A genuine question (“Still thinking about your SEO audit?”) earns the open; a string of emojis earns the scroll-past.
What to do: rewrite your next subject line as a real question a customer would ask, and A/B test it against your standard style.
Industry matters: benchmarks vary almost fourfold
Open rates swung wildly by industry:
- Tourism: 30.2% average open rate
- Nonprofits: 23.0%
- IT: 8.9%
- Marketing agencies: 7.7%
A nonprofit celebrating 23% opens and a marketing agency despairing at 8% are both performing normally for their sectors. Compare yourself to your industry — broader 2026 benchmark roundups break these numbers down further — not to a platform-wide average.
Unsubscribe truth: it is boredom, not frequency
Of roughly 173,000 unsubscribers who gave a reason, 83.5% said they were simply no longer interested, versus just 6.8% who said emails came too often. Marketers worry about sending too much; subscribers leave because the content stopped mattering to them.
That reframes the whole retention game: relevance beats cadence. A weekly email people look forward to loses fewer subscribers than a monthly email they ignore.
2026 email benchmarks at a glance
| Metric | Mass campaigns | Automated emails | Best performers |
|---|---|---|---|
| Open rate | 11.0% | 31.4% | <100 recipients: 23.6% |
| Click-through rate | 1.2% | 6.4% | <100 recipients: 4.8% |
| Best send day | — | — | Tuesday (12.6% / 1.44%) |
| Best send hours | — | — | 8 AM and 12 PM (12.9%) |
| Best subject style | — | — | Question format (12.4% / 1.74%) |
FAQ
What is a good email open rate in 2026?
It depends on how your provider measures opens. MPP-adjusted benchmarks (like Mailchimp’s 19.21%) filter out machine opens from Apple Mail Privacy Protection, while raw benchmarks (35–44%) include them. For most senders, 20–25% is average on an MPP-adjusted basis. Compare against your own industry and past results rather than a single global number.
What is a good click-through rate for email?
The reliable cross-industry benchmark sits around 2–3%. CTR is the metric to optimize in 2026 because, unlike open rates, it cannot be inflated by Apple MPP — a click requires a real human. If your CTR is above 3.5%, you are doing excellent work.
Should I send fewer emails to keep my list?
Not necessarily. The 2026 data shows people unsubscribe from boredom, not frequency — 83.5% left because they lost interest, only 6.8% because of too many emails. Send as often as you can stay genuinely useful; relevance matters more than cadence.
Are automated emails really that much better?
Yes. The Selzy study of 602 million emails found automated and triggered emails generated 5.3x more clicks than mass campaigns (6.4% vs. 1.2% CTR). If you have not set up a welcome series and re-engagement flow, those two automations are your highest-leverage next step.
Does the best time to send email really matter?
It helps, but less than targeting and relevance. Tuesday and 8 AM/12 PM slots performed best in the 2026 data, while the most crowded window (2–3 PM) underperformed. Test timing against your own audience — your subscribers’ habits beat any universal rule.
Conclusion
The 2026 email marketing benchmarks tell a clear story: relevance wins. Smaller, segmented campaigns beat mass blasts 12-to-1 on clicks. Automated emails tied to real subscriber actions beat scheduled broadcasts 5-to-1. Question subject lines beat emoji-stuffed ones, Tuesday beats Friday, and subscribers leave because they got bored — not because you emailed too much.
The playbook is refreshingly simple: segment your list, automate the obvious moments, write subject lines people want to answer, and measure what humans actually do (clicks and conversions), not what privacy features fake (opens).
If you need help building email automation into a broader growth strategy, take a look at our digital marketing services, or get in touch for a free audit. For more on building traffic that converts, see our guest posting guide for 2026 and our technical SEO checklist.
