10 Email Marketing Tips That Actually Work in 2025
Email marketing still has the highest ROI — $36 for every $1 spent. But only if you do it right.
1. Write Subject Lines Like Texts
Short, casual, curiosity-driven. "Quick question about Thursday" outperforms "Our Monthly Newsletter" every time.
2. Segment Everything
Stop sending the same email to everyone. Segment by behavior, demographics, and engagement level.
3. Automate Your Welcome Sequence
New subscribers should get 5-7 emails over 2 weeks. Introduce yourself, deliver value, then present your offer.
4. Send More Often Than You Think
2-3 times per week is fine if you're providing value. Your engaged subscribers want to hear from you.
5. Use Plain Text Emails
Fancy HTML templates often land in promotions tab. Plain text feels personal and lands in primary inbox.
6. Clean Your List Quarterly
Remove subscribers who haven't opened in 90 days. A smaller, engaged list outperforms a large, dead one.
7. A/B Test Subject Lines
Test two subject lines on 20% of your list, then send the winner to the remaining 80%.
8. Include One Clear CTA
Every email should have ONE action you want readers to take. Multiple CTAs dilute clicks.
9. Warm Up New Domains
New sending domains need 2-4 weeks of gradual volume increase. Start with 50 emails/day.
10. Track Revenue, Not Opens
Open rates are unreliable (Apple privacy). Track clicks, conversions, and revenue per email instead.
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