Glossary
Term | Definition |
---|---|
GDPR | A regulation protecting personal data and privacy in the EU. |
CAN-SPAM | A US law governing commercial email and ensuring recipients can opt out. |
Open Rate | Percentage of recipients who open your email. |
CTR (Click-Through Rate) | Percentage of people who click a link inside the email. |
A/B Testing | Sending two versions of an email to see which performs better. |
Personalization | Tailoring email content based on recipient data or behavior. |
Segmentation | Dividing your audience into specific groups for targeted communication. |
Table of contents
Introduction
Email marketing isn’t dead. It’s evolving. What sets winning brands apart is their ability to cut through inbox noise and make emails feel like a conversation — not a broadcast.
This guide goes beyond basic tips to answer the hard-hitting questions that matter in 2025. No fluff. Just practical, proven strategies you can apply right now.

1. Why Shouldn’t I Buy Email Lists?
Buying email lists is like handing out flyers to strangers and hoping for loyalty. It’s ineffective and legally risky.
What Happens When You Buy Lists:
Consequence | Impact |
---|---|
Legal Risk | Violates GDPR, CAN-SPAM, and other privacy laws. |
Poor Deliverability | High bounce rates damage sender reputation. |
Low Engagement | Cold leads = ignored emails. |
Spam Reports | Your domain could be blacklisted. |
What to Do Instead:
- Use popups and lead magnets.
- Offer gated content (ebooks, discounts).
- Promote email sign-up across social platforms.
- Run referral programs.
2. What Are the Best Practices for Writing Subject Lines?
Your subject line is the first (and sometimes only) thing your audience sees.
Best Practices
Tip | Why It Works |
---|---|
Keep It Short (6-10 words) | Fits better on mobile and grabs attention. |
Use Numbers or Lists | Headlines with structure perform better. |
Ask Questions | Sparks curiosity. |
Personalize | Using a name increases open rates by up to 26%. |
Use Preview Text Wisely | Expands on the subject line for more context. |
What to Avoid:
- ALL CAPS
- Clickbait
- Misleading promises
Pro Tip: A/B test two subject lines per send. Over time, you’ll uncover patterns that win.
3. Should I Use First Names in Emails?
Yes—when done right. Overuse feels robotic, but strategic personalization builds connection.
When It Works:
- Subject line: e.g., “David, ready to upgrade your skin routine?”
- First line of body copy: Warm, direct, and relevant.
When It Backfires:
- Too many mentions: Comes off creepy.
- Inaccurate data: Misspelled names = instant distrust.
Tip: Focus on contextual relevance over gimmicks.
4. How Often Should I Send Emails?
The best frequency is the one your audience actually wants. Find it through testing and behavioral data.
Start Here:
Segment Type | Frequency Recommendation |
---|---|
New Subscribers | 2-3x/week (initial engagement is key) |
Engaged Customers | Weekly or bi-weekly |
Dormant Subscribers | Monthly with re-engagement offers |
Key Considerations:
- Too few: They forget who you are.
- Too many: They unsubscribe.
Monitor engagement metrics closely. If your unsubscribe rate is creeping above 0.5%, dial it back.
Pro Tip: Use Klaviyo’s predictive analytics to adjust frequency based on user behavior.
5. How Do I Measure Email Marketing Success?
If you’re only tracking opens, you’re missing the bigger picture.
Key Email Metrics to Track:
Metric | What It Measures | Benchmark |
---|---|---|
Open Rate | Effectiveness of subject line & timing | 20%+ |
Click-Through Rate | Content engagement | 2.5%+ |
Conversion Rate | Action taken (purchase, sign-up, download) | 1%-5% |
Unsubscribe Rate | Content fatigue or misalignment | < 0.5% |
Revenue Per Email | Actual monetary value per send | Varies by industry |
Tools to Use:
- Klaviyo: Deep eCommerce insights.
- Mailchimp: Easy to set up with A/B testing.
- HubSpot: CRM integration for full-funnel analytics.
Frequently Asked Questions
1. Is email marketing still worth it in 2024?
Absolutely. With proper targeting, personalization, and automation, email remains one of the most profitable and scalable channels.
2. What’s the best time to send emails?
Mid-morning during weekdays tends to perform best, but testing is key. Use your ESP’s analytics to pinpoint optimal send windows.
3. Should I resend to non-openers?
Yes. Try using a different subject line and timing. Just don’t overdo it—limit resends to once per campaign.
4. How do I prevent my emails from going to spam?
Authenticate your domain (SPF, DKIM), use clean lists, and avoid spammy language or image-heavy layouts.
5. What’s the average email ROI?
The average ROI is $36-$42 per $1 spent. With strong segmentation and automated flows, some brands achieve higher.
6. How can I grow my email list fast without buying one?
Offer incentives (discounts, freebies, early access), use popups, leverage referral programs, and create content upgrades.
Final Thoughts
Email marketing doesn’t die—it evolves. Brands that embrace permission-based marketing, relevance, and consistency will continue to win in the inbox.
Stop sending emails just to send them. Start building campaigns that matter.
Blossom Ecom builds performance-driven email systems that attract, convert, and retain customers. Ready to take your list from passive to profitable?
Let’s build it right from the inbox up.
Need help implementing this?
Let us take the hassle of managing your email marketing channel off your hands. Book a strategy call with our team today and see how we can scale your revenue, customer retention, and lifetime value with tailored strategies. Click here to get started.
Curious about how your Klaviyo is performing?
We’ll audit your account for free. Discover hidden opportunities to boost your revenue, and find out what you’re doing right and what could be done better. Click here to claim your free Klaviyo audit.
Want to see how we’ve helped brands just like yours scale?
Check out our case studies and see the impact for yourself. Click here to explore.
Tactic | Strategy |
✅ Front-load urgency | Use action words like “Today only,” “Limited,” “Your order is waiting” |
✅ Subject line clarity | Be specific. Skip vague copy like “Here’s something for you…” |
✅ Content relevance | Only send what the subscriber actually cares about. Personalize. |
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