How to Improve Email Open Rates: Proven Tactics for 2026

The average email open rate across industries sits between 20 and 30 percent. That means 70 to 80 percent of your subscribers are not reading what you send. Improving your open rate even by a few percentage points can meaningfully impact your revenue from email marketing. Here are the most effective tactics to get more of your emails opened in 2026.

Segment Your List

Sending the same email to your entire list is the single biggest reason open rates suffer. Different segments of your audience have different interests, purchase histories, and engagement levels. A subscriber who bought running shoes should receive different content than one who bought yoga mats.

At minimum, segment by engagement level. Create a segment of highly engaged subscribers (opened in the last 30 days), moderately engaged (opened in 60-90 days), and unengaged (no opens in 90+ days). Tailor your sending frequency and content for each group.

Send from a Recognisable Name

Many subscribers decide whether to open based on who it is from before they even read the subject line. "Rahul from Zusta" consistently outperforms emails from "[email protected]" or even just "Zusta". Using a real person's name creates a human connection that drives opens.

Optimise Send Time and Day

Research suggests Tuesday through Thursday mornings perform best for B2B audiences, while weekends can work for consumer brands. However, the best send time is specific to your audience. Run tests sending the same email at different times to different list segments and measure which timing drives higher opens for your particular subscribers.

Clean Your List Regularly

A list full of unengaged subscribers drags down your open rate statistics and, more importantly, can hurt your email deliverability. Email service providers monitor engagement signals — if a high percentage of your emails go unopened or land in spam, your future emails become more likely to be filtered.

Run a re-engagement campaign for subscribers who have not opened anything in six months. Those who do not engage with the re-engagement series should be removed from your active list.

Use Preview Text Strategically

The preview text (also called preheader text) is the grey snippet visible in the inbox after the subject line. This is prime real estate that many marketers waste by leaving it as "View this email in your browser". Write preview text that extends and complements your subject line, adding additional context that entices the open.

Improve Your Email Reputation

Email deliverability is foundational. If your emails land in the promotions tab or spam folder, no subject line optimisation in the world will save your open rates. Authenticate your domain with SPF, DKIM, and DMARC records. Gradually warm up new sending domains. Maintain a low bounce rate by validating email addresses before adding them to your list.

Test Consistently

Open rate improvement is not a one-time exercise. Run A/B tests on subject lines for every major campaign. Track what works over time. Your audience's preferences shift, inbox competition increases, and what worked last year may not work today. Make testing a regular habit rather than an occasional experiment.