All successful product launches focus on building anticipation ahead of launch day. Unless you’re a huge brand like Apple, dropping a new product without telling your existing mailing list is madness.
We are Email Kong, a Master Platinum Klaviyo agency, that award puts us into the top 2% of Klaviyo partners globally. We build automated flows for over 150 DTC brands and product launch emails are a core part of our strategies.
In this guide we are going to explain how our agency approaches product launch email campaigns down to the last detail. Including how we build anticipation, grow email lists, plan our send frequency, and design email creative.
Building Your Mailing List With The Right Offer
It is essential to start planning your product launch as early as possible.
The more contacts on your mailing list, the more sales you will generate during the launch campaign. Which is why building your product launch email list needs to be your starting point.
In my experience, convincing someone to hand over their email address requires an incentive. Most DTC businesses provide a discount code or free shipping for example.
You must resist discounts during product launches.
If you launch a product at a discount, psychologically that communicates to customers that it's not worth its RRP and they should wait for it to come on sale. A nightmare scenario for brands.
Instead frame your signup offer around early access and exclusivity. Let your mailing list place their orders 24 hours before the general public. Or provide them with a limited edition product variant.
This way you give people a good reason to subscribe and you protect the perceived value of your product.
The Three Phases Of A Product Launch Email Sequence
We’ve planned your mailing list growth, next I’ll explain the email content and messaging to use throughout three distinct phases of your launch.
Phase One: Teasing & Announcing The New Product
Around 4-6 weeks before the planned launch day is the ideal time to start making people aware.
You have two options here with your very first email: teasing the launch OR announcing the launch.
Teasers are vague by design, they’re designed to create an information gap and play on your customer’s curiosity. You don’t need to provide the product information in this email. But it still has to name why the reader should care.
“Something is coming” is too vague of a message. “We’re adding the #1 most requested feature” peaks people’s interest whilst still withholding the thing itself.
For your email strategy, a teaser email’s primary purpose is to boost the open rate of your next email (i.e. the full announcement).
If you decide to send a teaser it should be done no more than one week before the full announcement email. It's important to capitalize on the momentum you’ve generated before consumers move onto something else.
Full Product Announcement Email
As the name suggests this is the email to officially announce your new product and provide all of the details surrounding it.
Send this as a mass email to your entire list of active subscribers.
It's crucial that your announcement email includes:
- High-quality images or video of the product
- Headings containing the USPs of your new product
- Pre-sale access link
- Launch date (or pre-sale date)
You need this email to generate excitement. Communicate the problem that this product solves, how it's different to your other products, and most importantly: communicate the dream outcome of how much easier your customers' lives will be when they buy this product.
Phase Two: Product Education & Countdown
After sending the product announcement email, you need to maintain that momentum by contacting your email list at the minimum once per week.
We’ve found the most effective email content to use in phase two is a rotation of educational content and countdown to launch.
Educational Content
When we worked with Kuri Nüka we were launching into a product space flooded with counterfeits, where customers arrive already burned. We built the email flow with an education-first mindset and answered each doubt at the moment it arrived, which is usually before the sale.
That approach drove a 350% increase in returning-customer revenue and 6.7x post-purchase flow revenue. Launching into a skeptical category is an education problem before it is an announcement problem.
Steal this approach for your product launch email flows by using individual emails to highlight specific use cases and features of your new product.
If your product is somewhat technical or you’re raising awareness of a particular problem, educational content in the weeks building up to your launch is an excellent way to bring consumers onside.
Countdown Emails
Marketers and founders can often overthink their campaigns or make them too elaborate (I’m guilty of this too on occasion).
Sometimes the most effective route is to use a simple email with one clear message: this is how long until the launch, be ready so you don’t miss out.
All you need here is a simple countdown timer to your launch date and a reminder to sign up for your pre-sale if needed.
The goal is to just keep your product launch fresh in your customers minds. A countdown email must be sent the day before your launch deadline.
Phase Three: Launch Day & Post-Launch
I need to be honest with you here: I love launch days. The buzz and excitement when something goes live for sale after months of build up is electric. And so are the celebrations when those first sales roll in.
When launch day arrives you need to commit to a minimum of two emails. The first needs to be sent on the day but a few hours before the sale opens to remind your list today is the day and they need to get ready.
Your second email needs to be sent at the exact time you begin taking orders with the message of: new product available to buy now.
Post-Launch Emails
The absolute dream scenario is that your new product sells out immediately after it's been made available. Whether this happens or not decides how your post-launch email content will look.
If the product is a sellout (fingers crossed) then you likely have some disappointed customers who could not place their order. To provide some great customer service, offer to enroll these people onto an exclusive waiting list which gives them first refusal once the product comes back into stock. You can then email updates about product availability.
Klaviyo supports back in stock flows for accounts with Shopify, BigCommerce, Magento 2 and other inventory-aware integrations so you can set this up no problem.
If your product doesn’t sell out on launch day, you need to manufacture some urgency and scarcity to prompt customers to take action.
Later that same evening or the day after your launch, contact your list to let them know there’s been plenty of demand (demonstrating social proof) and letting them know they need to act now or they’ll miss out entirely.
The Pre-Flight Tasks We Run Before A Client Launch
There you have it! Above is the email content and timelines we use during real product launch campaigns. To ensure that our campaigns generate the best results in terms of deliverability and more, there’s a few tasks we need to complete before the emails start sending.
Warming A Dormant Audience Starts Weeks Before Launch
Warming a dormant audience means mailing it in stages until it is answering again, and that takes weeks you do not have in launch week. If you only email for launches, your launch is the send most likely to land in spam.
An operator managing two Klaviyo accounts posted a comparison on r/Klaviyo that settles the argument. Both accounts carried the same technical flaw, a missing domain authentication record. Their client sending three campaigns a week landed in the primary tab. Their client who sent only for sales and launches sent a blast to 200 people and watched 60% of it go to spam.
Same setup, opposite outcome, and consistency was the only variable.
Klaviyo's own guidance for mailing a quiet list is blunt about the pace. With larger lists, it is recommended to break them down into multiple smaller lists, and include sends to engaged contacts in between re-engagement attempts. That takes weeks. Start the day the launch date is set.
The cost of getting that wrong rose sharply last year. Email authentication platform Red Sift tracks the enforcement, and reports that since November 2025, Gmail has scaled permanent rejections for senders who miss its bulk requirements, moving non-compliant traffic from temporary deferrals toward hard failures that never retry.
Your Complaint Budget Is Three Per Thousand
Google asks senders to keep spam rates below 0.10% and never to reach 0.30%. Read that as a budget you are spending: three complaints per thousand emails is your ceiling, and one per thousand is where you want to sit.
On a 40,000-person list that is forty complaints at the level you want to hold, and 120 before you hit the line Google says never to cross. Part of that audience last heard from you in March, and those subscribers are where the complaints come from.
Those same subscribers can now see how rarely you send. Gmail's Manage subscriptions view rolled out on 8 July 2025, and it lists the brands each person subscribed to alongside how often each one sends. There is a one-click unsubscribe beside it. To someone who had forgotten you existed, a launch burst reads as a frequency spike.
Your unsubscribe report will also overstate the damage. Chad S. White, who leads CRM strategy at Zeta and has written on email research for two decades, reported in March 2026 that Gmail submits multiple unsubscribe requests every time someone clicks a list-unsubscribe link in Manage Subscriptions. Total unsubscribe rates jumped by 200% or even 300%, while unique rates moved only modestly.
So read the unique number after a launch, not the headline one, or you will cut your next campaign's volume on a statistic that never happened. A launch is one of the few moments in the year when sending more genuinely pays, and that exemption only holds while the rest of your year stays quieter.
Retire The Profiles Most Likely To Complain
Whoever complains about your product launch email is identifiable in advance, and you can act on that before the send, while it is still cheap.
Run a sunset flow before the launch. Since sunset flows act as a final effort to engage profiles, Klaviyo's guidance is to sunset the lists and segments you plan to suppress, then remove whoever does not respond. You go into launch week addressing an audience that wants to hear from you.
One Product, One Call To Action
One product. One action. A second option splits the click and neither wins.
The announcement is where one call to action earns most, because it reaches the widest audience you will address all year outside Black Friday. If you want to show the full range, use your post-launch content for that to offer alternatives.
A Launch Runs The Attention Engine And The Lifecycle Engine Together
Those three sends are the visible half of a launch, and planning it as a campaign calendar plans only that half.
The other half runs on the four engines we build every client program around. Campaigns are the Attention Engine, automated flows are the Lifecycle Engine, and both fire during a launch. Your campaigns wake the list, and the flows underneath convert the people those campaigns stirred up without closing.
Building those campaigns is close to free now. Klaviyo's Q2 release dropped on June 30 at K:LDN, and Composer will generate a campaign's audience, copy, channels and send timing from a plain-language prompt. What it cannot tell you is which of your existing flows is about to fire over the top of it.
Flows Earn 41% Of Email Revenue From 5.3% Of Sends
The size of that difference surprises people who have only ever planned campaigns. Klaviyo's 2026 Omnichannel Benchmark Report draws on more than 183,000 brands. In Klaviyo's data, automated flows are 5.3% of total sends but generate nearly 41% of email revenue.
The engagement figures behind that run the same way. Klaviyo puts flow click rates at 5.58% against 1.69% on campaigns, and placed-order rates around thirteen times higher.
An agency running a 21-day collection launch for an apparel client reported the same shape from the inside on r/Klaviyo. Their launch campaigns hit 137% of the client's revenue goal, and the flows running underneath them hit 156% of that same campaign goal.
Your flows are part of the launch whether or not you planned them that way. Browse abandonment, cart recovery and post-purchase all fire harder during launch week, because you have just driven traffic at them. That is the Lifecycle Engine working, and it is worth confirming those flows are live before you send the traffic. Our Shopify email automation guide walks through the build.
A Waitlist Flow Gives Late Signups The Full Run Up
A campaign cannot reach someone who has not joined yet, which is the flaw in running your whole run-up as broadcasts.
Trigger a flow on people joining the waitlist segment instead. Someone who signs up nine days into a fourteen-day run-up still receives the full sequence on their own clock, without you scheduling anything for them. Your broadcasts then carry only what genuinely has to reach everyone at the same moment.
This is the pattern behind the retention system we build for clients, which we broke down in our Klaviyo CRM guide.
Where A Klaviyo Partner Fits Into A Product Launch
Three checks, four weeks of warming, a segment architecture and two engines to coordinate. That is a lot to run in the month you are also making the product.
Our free Klaviyo audit runs that pre-flight against your account. For a launch specifically, three of its findings decide the outcome:
Whether the audience you plan to announce to has heard from you inside the last 90 days. Which live flows are scheduled to fire across your launch window. Whether the segment you built resolves to the people you think it does.
You keep the audit findings whether or not you work with us afterwards. We are a Klaviyo Master Platinum Partner, a tier fewer than 1% of Klaviyo agencies hold, and we have run this work across launches for brands from homeware to streetwear since 2021.
Treat the launch date as a deadline for account work.
Book the audit four weeks out and there is time to fix what it finds. Book it in launch week and you get an accurate picture of why the send underperformed.
Get your free Klaviyo audit and find out which of the three your product launch email is going to hinge on.