Think about it’your email list is the one network you truly own. Unlike social media platforms, where changing algorithms can slash your reach overnight, email gives you a direct line to your customers. It’s personal, customizable, and ridiculously effective when done right.
In fact, our e-commerce partners are making 30-40% of their revenue through email marketing alone. Yes, that’s nearly half of their revenue coming from a single channel. The ROI on email marketing is unmatched it’s cost-effective, scalable, and one of the few channels that can pay dividends long after your initial effort.
If you’re running an e-commerce store, chances are you’ve already Googled “how to grow your email list” and been bombarded with endless checklists of hacks and tricks. Pop-ups, lead magnets, contests it’s enough to make your head spin.
Here’s the thing: we’re not here to give you another hundred-point checklist. Hacks might give you a quick boost, but sustainable list growth comes from simple, actionable strategies that work for the long haul.
This blog will walk you through 8 things we do as an e-commerce agency to grow our email list’strategies that have worked not just for us but for hundreds.
What Not to Do When Growing Your Email List
Let’s clear the air: some common email list-building tactics can do more harm than good. If you’re serious about building a quality email list that drives real results, avoid these mistakes at all costs:
1. Buying Email Lists
Yes, it’s tempting to pay for a shortcut, but buying email lists is the fastest way to ruin your sender reputation. Think about it’those emails didn’t ask to hear from you, so they’re unlikely to engage. Worse, you risk high unsubscribe rates, spam complaints, and even getting blacklisted by email providers.
Instead, focus on building an opt-in list of subscribers who want to hear from you. A small, engaged list will always outperform a large, disengaged one.
You should also scrub your email list regularly. (At least, once every six months!) People change email addresses, lose interest, or simply stop engaging with your emails over time. Removing inactive or unengaged subscribers helps protect your deliverability and ensures your list remains valuable.
2. Overpromising Freebies
I recently signed up for a brand’s email list because they promised discounts. The offer was vague, but I thought, “Why not?” After subscribing, their welcome email greeted me with, “You’ll be the first to know about future discounts”. That was it no discount code, no immediate value, just an empty promise. Not only did I unsubscribe immediately, but I also didn’t place an order from their website.
Sometimes, a poorly executed freebie doesn’t just hurt your email list growth?it can cost you a potential sale.
If you’re offering a freebie to attract sign-ups, make sure it’s clear, valuable, and delivered right away. Whether it’s a discount code, an exclusive guide, or early access to a sale, your freebie should set the tone for what subscribers can expect from your brand.
The takeaway – Underpromise and overdeliver. Align your offer with your brand’s value, and make sure it’s something subscribers genuinely care about. When done right, a good freebie can build trust and excitement rather than disappointment.
3. Ignoring Mobile Optimization
Over 77% of your website’s traffic comes from mobile users, (Statista) yet many brands still overlook mobile optimization. Clunky forms, pop-ups that don’t scale properly, or a poor mobile experience can frustrate potential subscribers and drive them away.
Use mobile-first pop-up apps like Optimonk and Recart to design mobile-friendly popups and test your sign-up process on multiple devices to ensure it’s seamless. Use responsive designs for your pop-ups and forms, and minimize the number of fields required to make the process as frictionless as possible.
How to Grow Your Email List FAST
1. Cash in on Seasonality and Festivals
Holidays and seasonal sales are prime opportunities to grow your email list. For example, during Black Friday, we created a dedicated landing page for one of our e-commerce partners. The page invited visitors to join their email list for exclusive early access to the Black Friday sale.
With targeted ads driving traffic to the page, the brand added 6,000 new subscribers in just two weeks.These subscribers didn’t just shop during Black Friday they became long-term customers.

2. Strategically Time Your Pop-Ups?
Pop-ups are powerful tools when used strategically. By analyzing your Google Analytics data, you can time your pop-ups based on user behavior. For example:
- Use exit-intent pop-ups to capture visitors about to leave.
- Trigger time-delayed pop-ups after users spend a certain amount of time on the page.
- Deploy scroll-based pop-ups to engage users who show interest by scrolling further down.
- Invest in a good pop-up app to build mobile-friendly pop-ups that aren’t annoying. We recommend using Optimonk and Recart?
Using these best practices, we helped a fashion e-commerce store grow their email list by 10x in seven months.
3. Implement a 2-Step Pop-Up Strategy
Why stop at email when you can also grow your SMS list? A two-step pop-up strategy is a smart way to optimize sign-ups for both channels.
Here’s how it works:

Step 1: Entice visitors to join your email list by offering an initial incentive, such as a 10% discount on their first purchase.

Step 2: After they sign up, upsell the SMS subscription with a slightly higher incentive, like an additional 5% off (15% total).
This strategy works because it feels like a bonus rather than a hard sell, and it encourages customers to connect on multiple channels.
4. Don’t limit your sign-up opportunities to just pop-ups.
Expand your opt-in strategy across touchpoints where customers naturally interact with your brand.
Here are some ideas:
Site Footer: Add a sign-up option to the footer of your website, ensuring users who scroll to the bottom of your pages don’t leave without the chance to subscribe.
Back in Stock Notifications: Offer to notify customers when an out-of-stock item is available, but require an email or SMS sign-up.
Pre-Order Waitlists: Use opt-ins for pre-order updates to capture highly engaged subscribers.
Employee Email Signatures: Add a simple CTA like “Join our email list for exclusive perks” in every employee’s email signature.
Checkout Page Opt-In: Add an opt-in option directly on the checkout page, allowing customers to subscribe seamlessly while completing their purchase.
Blog Posts: Embed sign-up forms within or at the end of your most popular articles to capture engaged readers.
5. Personalize the Sign-Up Process with Product Recommendation Quizzes
Product recommendation quizzes not only help grow your email list but also create a personalized shopping experience. By engaging users with a quick quiz and requiring an email to access their results, you can capture highly motivated leads.
For example, a skincare brand can ask questions about skin type and concerns, or a nutrition brand can focus on dietary goals and preferences. The result? Subscribers who feel understood and are more likely to engage.
Did you know? A quiz completion rate of 60?70% is considered average,(Octane AI) making this an incredibly effective strategy for brands in skincare, nutrition, fitness, and similar spaces.
6. Use QR Codes on Your Product Packaging and In-Store
QR codes are an underutilized yet highly effective way to grow your email list. Add QR codes to your product packaging or display them in your physical store. When scanned, these codes can lead customers to sign-up forms, exclusive offers, or loyalty programs.

For example: “Scan here to get a free scoop of ice-cream on us”. Offering a freebie or a discount incentivizes people to scan your QR code and join your email list.
7. Encourage Social Media Sign-Ups
Social media is a goldmine for growing your email list. Use these strategies to encourage followers to subscribe:
- Contests and Giveaways: Offer a chance to win prizes in exchange for joining your email list.
- Paid Ads: Run targeted ads that lead directly to sign-up forms or landing pages.
- Influencer Collaborations: Partner with influencers to promote exclusive email-only offers or content, driving their followers to subscribe.
This approach not only grows your list but also ensures you’re reaching a highly engaged audience that aligns with your brand.
8. Make It a Part of Your Loyalty and Referral Program
Tie email sign-ups to your loyalty and referral programs to create additional incentives. Offer rewards, such as loyalty points, discounts, or free products, for joining your list, leaving a review, and referring a friend.
For example:

This strategy not only grows your list but also strengthens customer loyalty by rewarding them for their engagement.
Keeping Your Email List Engaged
Building your email list is just the beginning. The true challenge and reward comes in keeping that list engaged. An engaged email list doesn’t just drive opens and clicks; it builds long-term customer relationships, increases lifetime value, and creates a community of loyal shoppers.
If growing your list is step one, engagement is step two and it’s the step that turns subscribers into repeat customers. Here’s how to ensure your audience looks forward to your emails instead of ignoring or unsubscribing from them.
1. Segment Your Audience
Segmentation is the foundation of engagement. The more personalized your emails, the better they’ll perform. Start by segmenting your subscribers based on how they joined your list:
- Referrals: Treat referral-based subscribers as warm leads; they often come with higher trust levels.
- Purchase Behavior: Segment customers by their order value high-value customers may respond better to exclusive perks, while first-time buyers might need a nudge to make a second purchase.
- Signup Source: Did they sign up through a product quiz, a contest, or a checkout opt-in? Tailor your messaging accordingly to meet their expectations.
Want to learn more about how to segment your email subscribers? Watch my YouTube video on email segmentation for the best-practices when it comes to segmenting your email subscribers.
2. Don’t Just Sell?Add Value
No one likes being sold to all the time. That’s why we start with a 50:50 ratio of promotional to content and trust-building emails at Budai Media.
For example, if you’re a nutrition brand, one email might promote a sale on supplements, while the next offers a guide to healthy eating or shares customer success stories. This balance fosters long-term engagement and customer loyalty. Over time, we analyze what kind of emails are performing the best, and adjust the ratio accordingly.
3. A/B Test Your Way to Success
Testing isn’t just a best practice it’s a necessity. A/B testing lets you understand what works and what doesn’t, so you can optimize every aspect of your email marketing. Here’s what to test:
- Sign-Up Forms: Experiment with the timing, messaging, and incentives to maximize opt-ins.
- Landing Pages: Test different designs, headlines, and CTAs to see what drives more sign-ups.
- Email Content: Test subject lines, images, layouts, and CTAs to identify what resonates most with your audience.
While running A/B tests is important, consistently monitoring and refining them is key. At Budai Media, we ensure your tests are optimized based on results, helping you make data-driven improvements that boost engagement and performance.
4. Maintain High Deliverability
High deliverability ensures your emails land where they’re supposed to in the inbox, not the spam folder. To maintain this, consider these key factors:
- Choose the Right Platform: We recommend Klaviyo for its robust features, analytics, and segmentation tools.
- Authenticate Your Domain: Use SPF, DKIM, and DMARC to build email provider trust.
- Clean Your List Regularly: Remove inactive subscribers and invalid emails to keep your list healthy.
- Optimize Sending Frequency: Don’t bombard your audience; instead, send the right content at the right time.
Wrapping Up
Email is one of the few channels that you truly own, just like SMS. Unlike social media or ad platforms that are subject to changing algorithms and rising costs, email and SMS give you a direct line to your customers?a space where you can build relationships on your terms. But here’s the thing: while these owned platforms are incredibly powerful, they work best when they’re part of a larger, omnichannel strategy.
The real magic happens when email and SMS are seamlessly integrated with your other marketing efforts, creating a cohesive experience for your customers. Whether it’s combining personalized email flows with timely SMS updates or syncing your campaigns with ads and social media, an omnichannel approach ensures you’re meeting your audience wherever they are?on their terms.
At the end of the day, growing and engaging your email list isn’t a one-time task; it’s a continuous process. It requires refining your strategy, testing what works, and staying connected to your audience.
If your store makes over $100k a month and you’re ready to take your marketing efforts to the next level, I’d love to help. Book a strategy call with me to get a complete audit of your Google, Meta, and retention marketing setup. I’ll share actionable insights tailored to your business that can help you scale sustainably while making the most of your owned platforms. Let’s turn your email and SMS lists into your strongest assets.


