How to Build an Email List From Scratch
Our first email list took 6 months to reach 100 subscribers. The second one hit 1,000 in 8 weeks. The difference wasn't traffic it was knowing what to offer and where to put the signup form. Here's everything we learned, minus the fluff.
Quick Verdict: Which Email Tool?
- Best free plan →Brevo (300 emails/day, unlimited contacts)
- Best automation →GetResponse (visual workflow builder)
- Best for ecommerce →Klaviyo (Shopify integration)
- Easiest to learn →MailerLite (clean UI, generous free tier)
Starting from zero? Brevo's free plan handles most small business needs (see our full Brevo review). Upgrade when you hit the limits.
Step 1: Pick your platform before you start collecting emails
Don't collect emails in a spreadsheet and "figure out the platform later." You'll lose subscribers during the migration, and you won't have double opt-in confirmation which means compliance issues from day one.
Start with one of these three. All have free tiers that handle your first 300-1,000 subscribers:
- MailerLite 1,000 subscribers free, cleanest editor, best deliverability in our tests. Start here if you're unsure.
- Brevo unlimited contacts, 300 emails/day free. Better if you expect a large list but low send frequency.
- GetResponse 30-day free trial, best automation builder. Start here if you want automated sequences from day one.
Full comparison: Free Email Marketing Tools Compared
Step 2: Create something worth trading an email for
"Subscribe to our newsletter" converts at about 0.5%. "Get our free hosting cost spreadsheet" converts at 3-5%. The difference is specificity. People don't want newsletters they want solutions to specific problems.
Lead magnets that worked for us:
- Checklists "WordPress Launch Checklist (23 items)" converted at 4.2% on our WordPress hosting articles
- Spreadsheets/calculators our hosting cost comparison spreadsheet is our #1 lead magnet
- Cheat sheets one-page references that people actually save and use
- Email courses "5-day WordPress Speed Course" converted at 3.8% and had 72% completion rate
What didn't work: generic ebooks (too much effort to create, low perceived value), "exclusive content" (too vague), and discount codes (attracts deal-seekers who unsubscribe after using the code).
Step 3: Put signup forms where people actually see them
We tested 6 form placements across our sites. Results by conversion rate:
| Placement | Conversion Rate | Notes |
|---|---|---|
| Exit-intent popup | 3.2% | Highest converting, only shows when leaving |
| In-content (after intro) | 2.8% | Contextual, doesn't feel intrusive |
| End of article | 1.9% | Catches engaged readers |
| Sidebar widget | 0.4% | Banner blindness people ignore sidebars |
| Header bar | 0.3% | Too small, too easy to dismiss |
| Footer | 0.1% | Almost nobody scrolls to the footer to subscribe |
Use at least two: an in-content form on your best articles and an exit-intent popup site-wide. That combination alone accounts for 80% of our signups.
Step 4: Drive traffic to your signup pages
You can't build a list without visitors. Our traffic sources ranked by subscriber quality (open rate + engagement):
- Organic search (SEO) slowest to build, highest quality. People searching for solutions are primed to subscribe for more. Our blogging guide covers the content side.
- Guest posts with lead magnet links write for sites in your niche, link to a landing page (not your homepage). We got 200 subscribers from one well-placed guest post.
- Social media (selectively) Twitter/X threads that end with a lead magnet link. LinkedIn articles for B2B. Don't spread across every platform pick one and go deep.
- Paid ads Facebook/Instagram lead ads can work at $1-3 per subscriber. Only worth it if your email sequence converts to revenue. Otherwise you're paying to grow a list that costs money to maintain.
Step 5: Send emails people actually open
Growing the list is half the job. Keeping subscribers engaged is the other half.
Welcome sequence: Set up a 3-5 email automated sequence that delivers your lead magnet, introduces yourself, and sets expectations. Our welcome sequence has a 68% open rate on email 1 and 45% on email 5. People are most engaged right after subscribing don't waste that window.
Subject lines: Short, specific, curiosity-driven. "Our hosting costs dropped 60% here's how" outperforms "Monthly Newsletter #14" every time. We A/B test subject lines on every send MailerLite and GetResponse both support this on free plans.
Content ratio: 80% value, 20% promotion. If every email is a sales pitch, people unsubscribe. If every email is pure education, you never make money. We promote in a P.S. section or dedicate one email per month to a specific recommendation.
More on deliverability: How to Improve Email Deliverability