Email marketing for small business: start free
Email marketing for small businesses isn't dead; it's actually one of the highest-ROI tools you have. Your email list belongs to you (unlike social media followers). A list of 200 engaged subscribers drives more sales than 5,000 Instagram followers. The hard part is starting and being consistent. Here's the simple system that works.
The simple email marketing system
- Pick a free tool: MailerLite, Buttondown, or Brevo.
- Add a signup form to your website and in your shop.
- Send a welcome email automatically when someone signs up.
- Send monthly with useful content and one soft CTA.
- Track open rate; adjust subject lines based on what works.
Best free email tools (2026)
MailerLite
Easiest for visual templates. mailerlite.com.
- Free: up to 1,000 subscribers, 12,000 emails/month
- Paid: starts at $9/month
- Drag-and-drop editor
- Automation included on free tier
Buttondown
Best for writers and content-focused businesses. buttondown.com.
- Free: up to 100 subscribers
- Paid: $9/month for 1,000 subscribers
- Simple, distraction-free interface
- Privacy-focused
Brevo (formerly Sendinblue)
Generous free tier with SMS too. brevo.com.
- Free: unlimited subscribers, 300 emails/day
- Paid: starts at $9/month
- SMS and chat features included
Mailchimp
The famous one. Free tier is now restrictive (500 contacts, limited features). mailchimp.com.
- Familiar name
- Comes with Shopify, Squarespace, etc. integration
- Better when you're ready to pay; not the best free choice anymore
ConvertKit (now Kit)
Creator-focused. Good for solopreneurs, coaches, writers.
- Free: up to 10,000 subscribers (broadcasts only)
- Paid for automation
How to grow your list
Website signup form
Add a simple form to your homepage and a popup that appears after 30 seconds. Offer something specific in exchange for signing up:
- A useful checklist or guide
- A discount code for first-time customers
- "Early access" to events or sales
- Monthly newsletter with tips
In-person signup
Have customers sign up at point of sale, after a service, or at events. A tablet with a simple form converts well. Some POS systems (Square, Shopify) integrate directly with email tools.
Social media
Put your signup link in your bio. Reference it occasionally in posts. "Want my monthly tips? Sign up at [link]."
Lead magnets
Free resource (PDF guide, video, checklist) in exchange for email. Effective when the resource is genuinely useful and specific to your audience.
Word of mouth
Existing subscribers forward your emails. Easier when you write things worth forwarding.
What to send
Welcome email (automatic)
Trigger: when someone signs up.
Content: thank them, tell them what to expect, set frequency expectations, link to your most valuable content.
Monthly newsletter
Content options:
- One specific tip useful to your audience
- A recent customer story (with permission)
- Behind-the-scenes of your business
- Upcoming events, products, or services
- Curated links to useful resources
- Answer a common customer question
Promotional emails
Use sparingly. For genuine sales, launches, or limited-time offers. Too many promos and people unsubscribe.
Re-engagement
For subscribers who haven't opened in 6 months. "Are we still useful? Click yes to stay on the list." Clears out inactive emails (which hurt your deliverability).
What NOT to send
- Daily emails (unless that's specifically what people signed up for)
- Every blog post automatically
- Generic "happy [holiday]!" emails with no value
- Emails that look like everyone else's
- Emails with broken formatting on mobile
Writing emails people open
Subject lines matter most
- Specific over vague: "3 things to try this week" beats "Newsletter"
- Questions work: "Did you see what happened at the dock yesterday?"
- Personal phrasing: write like you would to a friend
- Avoid spam triggers: avoid "FREE!!!" "Act Now!" all caps
- Test two subject lines (most tools have built-in A/B testing)
Use AI for first drafts
"Draft a 200-word newsletter email from my small business about [topic]. Friendly, helpful tone. End with a soft CTA to call us if needed."
Edit to sound like you. See our write an email with AI guide.
Frequency
| Frequency | Works for |
|---|---|
| Weekly | Content businesses, newsletters, daily product updates |
| Bi-weekly | Most service businesses with regular content |
| Monthly | Most small businesses (default starting point) |
| Quarterly | Very low-volume; may lose engagement |
Important compliance
Get explicit permission
Buying email lists is illegal in most places and ineffective everywhere. Only email people who explicitly signed up.
Include unsubscribe
Required by law (CAN-SPAM in US, GDPR in Europe). Every email tool includes this automatically. Don't disable it.
Use a real business address
CAN-SPAM requires a physical address in every email. PO boxes are fine. Email tools handle this.
Measuring success
- Open rate: 20-30% is good. Below 15% means subject lines or list quality issues.
- Click rate: 2-5% is typical. Higher means content is engaging.
- Unsubscribe rate: below 0.5% per email is healthy. Higher means you're sending too often or wrong content.
- Sales attributed to email: the metric that matters most.
A 90-day email marketing plan
- Day 1-7: Pick a tool, sign up, set up a basic signup form on your website.
- Day 8-14: Write and schedule your welcome email.
- Day 15-21: Send your first newsletter to whatever list you have.
- Day 22-60: Grow list (website, point of sale, social).
- Day 30: Second newsletter.
- Day 60: Third newsletter.
- Day 90: Review what worked, refine.
5 things to do this week
- Sign up for MailerLite free.
- Add a signup form to your homepage.
- Import your existing customer email list (with permission).
- Write your welcome email.
- Schedule your first monthly newsletter.
Video walkthrough: MailerLite for beginners
Video by StartupWise on YouTube
Want help getting started?
Isaac can sit with you and set up an email marketing system for your specific business. Most setups take an hour and pay back many times over.