To increase email open rates in 2026, focus on subject lines and preheaders, list segmentation, deliverability (SPF/DKIM/DMARC), send-time testing, mobile-friendly design, and A/B tests. For ecommerce, benchmark open rates are roughly 30–38% — use the 11 tactics below to beat your baseline.
TL;DR
Email marketing remains one of the highest-ROI channels for ecommerce. Based on the State of Email report from Litmus, for every $1 spent on email marketing, 35% of companies earn $10–$36 — often outperforming paid social.
But strong creative still fails if open rates are low. Below: benchmarks, 11 proven tactics, and how to track results alongside other email marketing metrics and KPIs.
Choosing or switching ESP? Our best email marketing platforms for ecommerce guide compares deliverability, segmentation, and pricing.
On this page:
An email open rate is the percentage of recipients who opened an email out of the total successfully delivered. Influencers include subject lines, timing, sender reputation, and segmentation.
Email open rate = (# of email opens ÷ # of emails delivered) × 100%
Open rate is useful but never the only metric — pair it with click-through rate, conversion rate, and deliverability. See our full guide to email marketing metrics and KPIs.
According to GetResponse's Email Marketing Benchmarks report (4.4 billion messages analyzed), the average global email open rate is 39.64%. Rates vary by industry, region, and send type — Europe often averages ~43%, North America ~24%.
Average email open rate for ecommerce:
Use these as directional benchmarks — compare against your own historical performance first.
Apply these tactics in order of impact for your list: deliverability and subject lines usually move the needle fastest.
Your subject line is the gateway to your content. 47% of recipients decide whether to open based on the subject line alone; 69% may mark mail as spam if it looks suspicious.
Three rules for ecommerce subject lines:
Preheader (preview) text supports your subject line — typically 80–100 characters. GetResponse data shows emails with a preheader average 44.67% open rate, several points above baseline.
If you skip the preheader, most ESPs show the first body line instead — often wasted inbox space.
According to CloudHQ, 48% of emails land in spam. Avoid exaggerated claims, fake urgency, and overly promotional phrasing in subject and body:
Segmented campaigns drive 30% more opens and 50% more click-throughs than batch sends (Sender). Strong ecommerce segments:
42% of people check the sender name before opening. Two patterns that work:
Personalized subject lines can lift opens by up to 26% (Campaign Monitor). Example: "Hi Peter, we added the features you requested" beats "Dear subscriber, new features inside".
No universal best time — test for your audience. GetResponse benchmarks show stronger opens in early morning (4–6 AM) and late afternoon (5–7 PM) slots; Tuesdays slightly lead other weekdays but differences are modest.
Image source: GetResponse
Mobile accounted for 55%+ of global email opens in 2025 (Genesys); 75% delete non-mobile-friendly mail immediately. Keep mobile subject lines to 25–50 characters and use large tap targets and readable fonts in the body.
Opens can't happen if mail never reaches the inbox. Since Gmail and Yahoo tightened authentication in 2024, follow deliverability fundamentals:
For a full walkthrough, read email deliverability 101: how to reach the inbox in 2026.
Test one variable at a time: subject line, preheader, sender name, or send time. Changing multiple elements at once makes results impossible to interpret.
A follow-up send with a new subject line or timing can add ~30% more opens (MailerLite). Remove chronic non-openers after several attempts to protect sender reputation.
Higher open rates need both tactics and tooling. Our email marketing platform comparison helps you shortlist ESPs with strong deliverability and segmentation.
Maropost Marketing Cloud is Maropost's platform for email marketing, SMS, automated journeys, and Meta ad campaigns — not a generic third-party "marketing cloud." It helps ecommerce teams:
Book a demo or see Maropost pricing.
A good email open rate is typically 35–40% globally, but ecommerce often lands closer to 30–38%. Benchmark against your own history and improve subject lines, segmentation, and deliverability rather than chasing a single industry number.
Recent vendor benchmarks put ecommerce open rates around 29.81% (Mailchimp) and 37.93% (Klaviyo). Your rate depends on list quality, send frequency, and whether promotional vs transactional mail dominates.
Beyond opens, track delivery rate, click-through rate, conversion rate, unsubscribe rate, bounce rate, and spam complaint rate. Our essential email marketing metrics and KPIs guide explains each one.
Lead with clear value, curiosity, or urgency — without spam triggers. Personalize using behavior (cart items, categories browsed), keep mobile subjects under 50 characters, and A/B test variations weekly on your highest-volume sends.