The Power of Email: Email Marketing Stats You Need to Know

In a digital landscape bursting with social platforms, paid ads, and content marketing, email marketing remains one of the most powerful tools in any marketer’s arsenal. Why? Because it continues to deliver high ROI, personalized customer journeys, and strong engagement rates.

1. Email Marketing Delivers a Massive ROI

According to recent data, every $1 spent on email marketing generates an average ROI of $42. This return is higher than almost any other digital marketing channel, making email a must-have for businesses of all sizes.

2. Email Usage is Bigger Than Ever

• 4.6 billion people use email globally as of 2025.

• That’s more than half the world’s population—and it’s still growing.

• Over 361 billion emails are sent and received daily in 2025.

Whether you’re B2B or B2C, your audience is definitely checking their inbox.

3. Open Rates Are Going Up

• The average email open rate across all industries is now 21.5%, up from 19.8% in 2023.

• Personalized subject lines increase open rates by up to 26%.

• Emails with emojis in subject lines see higher engagement, especially in e-commerce and lifestyle niches.

4. Mobile Rules the Inbox

• 61.9% of all email opens occur on mobile devices.

• Mobile-optimized email campaigns have 24% higher click-through rates than non-optimized ones.

• Responsive design isn’t optional—it’s essential.

5. Automation Drives Results

• Automated emails generate 320% more revenue than non-automated campaigns.

• The most effective types of automated emails include:

  • Welcome emails (average open rate: 68.6%)

  • Abandoned cart emails (average recovery rate: 10-15%)

  • Post-purchase follow-ups and re-engagement series

6. Personalization Isn’t Optional

• 80% of consumers are more likely to purchase from a brand that offers personalized experiences.

• Emails with dynamic content (personalized by user behavior or demographics) see 2x the conversion rate compared to generic emails.

• Segmented campaigns result in 760% more revenue.

7. A/B Testing Pays Off

• Marketers who consistently A/B test their email campaigns see up to 37% better results in open and conversion rates.

• Most common A/B test elements:

  • Subject lines

  • CTA buttons

  • Send times

  • Email layout

⏰ 8. Timing Still Matters

• The best days to send emails are Tuesdays and Thursdays, with Tuesday morning being the peak.

• Emails sent at 10 AM local time tend to perform the best.

9. Email is Crucial for Retention

• Retention marketing via email is 5x more cost-effective than acquiring new customers.

• Loyalty and VIP email programs have significantly higher engagement, averaging 30%+ open rates and 15%+ CTRs.

The numbers don’t lie—email marketing is thriving. With better tools, smarter automation, and deeper personalization, brands that invest in strategic email marketing are seeing serious results.