227: Email Marketing Takeaways From Klaviyo Con With Austin Brawner And Toni Anderson

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The best ecommerce email capture strategy is the one with the strongest offer behind it. The form technology matters far less than what you are actually giving people in exchange for their address. That was the single loudest theme from day one of Klaviyo Con in Boston, where I recorded this episode with Austin Brawner of Ecommerce Influence and my business partner Toni Anderson.

Klaviyo’s own platform data put hard numbers on it. The median opt-in rate for an ecommerce email form is 1.8%, the top 10% of forms convert at 6.5%, and roughly 1.4% of your list decays away every single month. Austin, who audits opt-in forms across dozens of client stores, has seen sustained rates above 10% only a handful of times, and every one of them was a quiz.

This recap covers the opt-in benchmarks, the form types that beat coupon pop-ups, why plain-text emails keep outperforming designed ones, how to set your Klaviyo attribution window, and the loyalty and referral tactics that came up across the sessions.

Key takeaways

• The median ecommerce email opt-in rate is 1.8% and the top 10% of forms hit 6.5%, per Klaviyo’s platform data.
• Email lists decay at roughly 1.4% per month, so aggressive capture only works if you also prune unengaged subscribers.
• Quiz-style opt-in forms are the only format Austin Brawner has repeatedly seen break 10%, topping out around 12%.
• A relevant giveaway (a national parks pass, for one client) beat a percentage-off discount and cost less to fulfill.
• Most welcome-flow revenue comes from the first email, so optimize that one before you touch emails two through six.
• Plain-text emails perform equal to or better than designed HTML emails in most tests Austin has run.
• Shrink your Klaviyo attribution window to one or two days if you send more than one email a week, or every sale gets credited to email.
• Stop competing with Amazon on price, convenience, and selection. Compete on product quality and experience.

What is a good ecommerce email opt-in rate?

A good ecommerce email opt-in rate sits at or above 6.5%, which is where Klaviyo’s top 10% of forms land. The median across the platform is 1.8%, so anything above 3% already puts you in respectable territory. My own best-performing form on my store converts at about 3%.

Austin sees a wider spread because he works across many client accounts at once. The highest sustained rate he has recorded is 12%.

Those numbers only mean something in context. A 12% opt-in rate on a list you never clean is worse than a 2% rate on a list that opens.

Why email list decay changes how you capture emails

Email list decay of about 1.4% per month means a list you never add to loses roughly 15% of its subscribers a year. That single stat reframes the whole single-versus-double opt-in debate. You need volume coming in the top just to stay flat.

My preference is to capture aggressively, run everyone through a sequence, and prune the non-openers on the back end. Turning away a marginal subscriber at the form costs you the chance to ever convert them.

Austin’s caveat is the important half. Any form that pulls in more emails also pulls in more junk, so if you run a high-volume capture method you have to clean the list or your bounce rate and deliverability will suffer.

Do spin-to-win wheel pop-ups still work for ecommerce?

Spin-to-win wheel pop-ups still work, though the novelty premium that made them explosive has largely evaporated. When I first ran one on my store, my email-driven sales jumped roughly 130%. That was when almost nobody had seen one.

A Klaviyo presenter flagged the wheel as a bad-practice example while showing static coupon-code forms as good ones. Both hand out a discount, so the distinction is really about list hygiene rather than the mechanic itself.

Toni runs a standard discount pop-up instead and it is her highest-converting flow, with no meaningful gap versus the wheel. She also finds the wheel annoying as a shopper, and saturation is the likely reason the gap has closed.

What opt-in offers beat a coupon code?

The opt-in offers that beat a coupon code are the ones tied to something the customer already wants, and they usually cost less to deliver. A client of Austin’s sells custom-designed national park maps and ran a standard percentage-off discount for a while. They swapped it for a giveaway of an annual national parks pass.

The giveaway was far more aligned with what their buyers cared about, and it cost the business one pass a month instead of 15% off every order. That math works out dramatically in the store’s favor.

On my own store I ran topic-matched ebooks before I switched to the wheel. Handkerchief shoppers got a crafts ebook, napkin shoppers got a napkin-folding ebook, and with coupon pop-ups now on nearly every store, that older approach is worth revisiting.

How do quiz opt-in forms get a 12% conversion rate?

Quiz opt-in forms hit double-digit conversion rates because they deliver a genuinely useful answer before they ask for anything. Both of the 10%-plus forms Austin has audited were skincare quizzes that assessed the shopper’s skin type and then routed them to the matching products.

The value exchange is real in both directions. The shopper learns something they actually wanted to know, and the store lands them on the right product page at the end.

Quizzes also capture data you can act on later. Klaviyo, Drip, and most modern providers let you pass quiz answers through as profile properties, so you can build segments from them months down the road without knowing today what you will need.

A beard-care brand Austin follows runs a quiz that tells you what type of beard guy you are and recommends products from the result. The format travels well to any category where fit or type matters.

Do full-screen welcome mat pop-ups hurt conversions?

Full-screen welcome mats convert well when the offer behind them is strong, and they tank when it is generic. Toni finds them so intrusive that she clicks off the page, and Trunk Club uses one anyway.

Austin’s warning is that your own shopping instincts are a bad guide here. He personally despises his inbox while running email programs that send thousands of messages a day.

The national parks pass is the test case again. That client could put an aggressive full-screen offer in front of people and still convert, because the thing on the other side was worth the interruption.

Why the first welcome email matters more than the rest of the sequence

The first welcome email typically drives around 80% of the entire welcome flow’s revenue, which is why it deserves most of your optimization time. Mike Gracewicz of Taylor Stitch made this point in his Klaviyo Con session, and Austin sees the same pattern across his client base.

Businesses routinely invert this. They spend hours tuning emails two through six while the one email actually moving the number sits untouched.

Taylor Stitch optimizes that first email two ways: a subject line built to be genuinely compelling, and the most aggressive offer the business can make while staying profitable. Their reasoning is that no amount of downstream marketing works until the customer has actually tried the product.

Until you are doing millions of dollars a month, your time is almost always better spent somewhere other than tweaking the tail end of a welcome sequence.

How long should an ecommerce email sequence be?

An ecommerce email sequence should run about as long as your customer’s actual repurchase cycle, and no longer. Gracewicz made the point that if your buyers reorder at 30 and 60 days, an eight-month automated flow is mostly wasted sends against a decaying list.

This is a real correction to the long-sequence advice a lot of us have followed. Mike Jackness of ColorIt famously runs something like 90 emails in his flow, and both Toni and I built long sequences on that model.

The fix is segmentation rather than truncation. Match sequence length and cadence to buying behavior instead of applying one flow to every subscriber.

Do plain-text emails outperform HTML emails in ecommerce?

Plain-text emails perform equal to or better than image-heavy HTML emails in most of the tests Austin has run, and the consensus among the Klaviyo speakers matched that. On my blog, text-based emails blew away anything with graphics in it. I have not run the same test on my store, mostly out of a mental block about needing a logo and a product photo.

Gracewicz found the same thing from the other direction. His designer kept building long, beautiful emails, but the click map showed everyone clicking the first element, so he had the designer produce five simple emails in the time one polished email used to take. Results held steady.

Austin’s definition of plain text here is literal: no logo, no HTML at all. Text with a light HTML wrapper performs about as well, so either version beats a heavy image build.

The caveat is brand sustainability. If you sell beautiful cowboy boots, people need to see the boots, so the practical answer is designed emails as your baseline with plain-text sends mixed in for promotions and VIP outreach.

Toni’s second welcome email is pure text, written as though she is talking directly to the subscriber, and it does not even contain a store link. It is her highest-open-rate email and people reply to it. She introduces herself as the owner, tells the story of why she started the company in about three paragraphs, and closes with a PS asking for the customer’s story.

What are the average revenue-per-recipient benchmarks for Klaviyo flows?

For stores with a $50 to $100 average order value, Klaviyo reported roughly $2.75 per recipient on abandoned cart, about $0.50 on browse abandonment, and around $0.25 on the welcome series. These figures were segmented by average order value, so pull the band that matches your store rather than the blended average.

Austin’s own rule of thumb is a useful cross-check. Browse abandonment should generate roughly 50% of what abandoned cart generates, and falling well short of that ratio signals an opportunity.

How should you set your Klaviyo attribution window?

Set your Klaviyo attribution window to one or two days if you send more than one email a week. Klaviyo’s default credits a conversion when a subscriber opened an email within roughly five days, and that window is far too generous for a store emailing three times a week.

Every platform sets its default attribution to its own benefit. Facebook counts view-through conversions by default, Google Analytics runs last-click, and Klaviyo counts opens within the window, so the same sale gets claimed three times over.

The practical damage shows up when your dashboards report a 100% month over month gain and your actual bank deposits say otherwise.

Austin adjusts the window down when the attributed revenue feels larger than the real growth. There is no clean answer to multi-touch attribution, so the workable approach is looking at your funnels holistically and judging total business growth rather than demanding a return on every channel independently.

I learned that one the hard way chasing a 3x return on top-of-funnel Facebook ads. Evaluating the funnels together instead of individually is what finally let me sleep at night.

Why you should not compete with Amazon on price, convenience, or selection

Amazon owns price, convenience, and selection, so competing on any of those three is a losing position for an independent store. That was Austin’s biggest takeaway from the day-one customer loyalty session run by Smile.io. Amazon has more resources, more history, and more infrastructure in all three areas.

What remains is product quality and customer experience. Ask whether what you sell is genuinely unique, and whether you can win on the experience around it.

My store’s answer is personalization. We push fast turnaround times and put a human on the phone to work through the details of a personalized order, which is a genuine pain to operate and carries very high margins. Amazon offers personalization too, and it is far less personal.

That is why we doubled down there. The rest of our catalog will likely commoditize over time.

How do you re-engage subscribers who stopped opening your emails?

Build a Facebook custom audience from your non-openers and reach them with ads instead of more email. A win-back campaign asks people to open an email in order to prove they still open emails, which is exactly the behavior they have already stopped doing.

I run win-back sequences on my store and they largely go unopened. Switching channels for that specific segment is the obvious fix and one I had not implemented.

Do ecommerce referral programs work for every store?

Referral programs only work when your product is something customers would naturally bring up in conversation. One Klaviyo Con speaker made the case for moving away from discounts and toward loyalty and referral instead, and Austin’s qualifier is that the product has to lend itself to being talked about.

My store fails that test. Nobody tells a friend about the handkerchiefs they bought, so a referral program there would be effort spent for very little return.

The broader principle is to be selective about what you bother initiating. A skin-type quiz is exceptional for skincare and roughly pointless for microfiber towels.

How do paid VIP membership programs work in ecommerce?

Paid VIP programs charge a small joining fee and immediately hand back most or all of it as store credit, which converts a browser into a committed customer before they have shopped. One sneaker brand presented at the event charges $19.99 to join the VIP club and gives members a $20 gift card, so the shopper is effectively even on day one and has a card on file.

Toni flagged the psychology as the clever part. They collect payment details before the first purchase, and the customer feels like they came out ahead.

Austin works with a company running a back-end variant. After a purchase, they upsell a roughly $20 annual membership that refunds the initial shipping cost, which runs eight or nine dollars, so the member is ahead by their second order.

Both versions target the same outcome. The front-end version needs a category with real fandom behind it, and the back-end version works on almost any store with repeat purchase behavior.

Should you build a Messenger list or an email list first?

Build the email list first. Austin and I landed in the same place for the same underlying reason: email infrastructure is mature and reliable, while Facebook controls Messenger outright and has already changed the rules more than once.

Klaviyo has invested millions of dollars in delivering email predictably. Messenger has far less infrastructure behind message delivery, and building your audience on a platform someone else controls is the same trap that caught everyone who built on organic Facebook page reach.

The economics are the deciding factor. With email you pay your provider a flat fee and send as much as you want, while Facebook is already piloting paid Messenger sends, which means the free window will close.

My practical sequence is to capture the email first, then go for the Messenger subscription immediately afterward with a separate offer while the visitor is still engaged. Passing subscribers from Messenger back to email is clunky and usually needs a glue tool between them.

Frequently asked questions

What is the median email opt-in rate for ecommerce stores?

The median opt-in rate for an ecommerce email capture form is 1.8%, according to Klaviyo’s platform data presented at Klaviyo Con. The top 10% of forms convert at 6.5%.

How fast do email lists decay?

Ecommerce email lists lose roughly 1.4% of subscribers per month to unsubscribes, bounces, and disengagement, based on Klaviyo’s data. That works out to about 15% a year if you add nobody new.

What is the highest-converting type of email opt-in form?

Quizzes convert highest in Austin Brawner’s experience, reaching about 12% when the quiz result is genuinely useful to the shopper. Skincare quizzes that diagnose skin type and recommend matching products are the clearest example.

How much revenue does an abandoned cart email generate?

Klaviyo reported roughly $2.75 per recipient for abandoned cart emails at stores with a $50 to $100 average order value. Browse abandonment came in around $0.50 and welcome series around $0.25 in the same band.

What attribution window should I use in Klaviyo?

Use a one to two day attribution window if you email more than once a week, rather than Klaviyo’s default of roughly five days. A wide window credits nearly every sale to email when you are sending frequently.

Are plain-text emails better than HTML emails?

Plain-text emails perform equal to or better than image-heavy HTML emails in most tests, and they are cheap and fast to produce. Most brands do best using designed emails as a baseline and mixing plain-text sends in for promotions, founder notes, and VIP outreach.

Should I focus on the first welcome email or the whole sequence?

Focus on the first welcome email, since it typically drives around 80% of the welcome flow’s revenue. Optimize its subject line and make the offer the strongest one you can run profitably.

Is Messenger marketing a replacement for email marketing?

Messenger is a supplement to email rather than a replacement, because Facebook controls the channel and is moving toward charging per message. Capture the email address first and offer Messenger as a secondary subscription right afterward.