Email marketing insights.
Strategy, automation, and Klaviyo guides written by Pete Devkota. Engineering writing for engineers building revenue.
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View all rankings →The 10 best Klaviyo agencies and partners for 2026
Reviewed October 2026 · 10 entries Editorial RankingsBest Klaviyo Experts and Freelancers to Hire in 2026
Reviewed October 2026 · 8 entries Editorial Rankings · AustraliaBest Klaviyo Agencies & Experts in Australia for 2026
Reviewed October 2026 · 8 entries Editorial Rankings · USABest Klaviyo Agencies in the USA for 2026
Reviewed October 2026 · 10 entries Editorial Rankings · UKBest Klaviyo Agencies & Experts in the UK for 2026
Reviewed October 2026 · 10 entries Editorial Rankings · Email Marketing AgenciesBest Email Marketing Agencies for Ecommerce in 2026
Reviewed October 2026 · 12 entries Editorial Rankings · SMS Marketing AgenciesBest SMS Marketing Agencies for Ecommerce in 2026
Reviewed October 2026 · 11 entries Editorial Rankings · ShopifyBest Shopify Email Marketing Agencies in 2026
Reviewed October 2026 · 10 entries Klaviyo Flow LibraryKlaviyo Flow Examples for 2026: The Complete Guide
Reviewed June 2026 · 11 entries Welcome Series LibraryKlaviyo Welcome Series Examples for 2026
Reviewed June 2026 · 11 entries/ All transmissions
Email Marketing Agency Pricing & Costs in 2026
What email marketing agencies charge in 2026: published retainers and project fees, five pricing models, total cost by list size, freelancer and in-house costs.
Best Shopify Subscription Apps (2026): 8 Compared on Price and Fit
Loop, Recharge, Skio, Stay AI, Appstle, Seal, Bold and Shopify Subscriptions compared: verified September 2026 pricing, real monthly costs, and which fits your store.
Checkout Champ and Klaviyo: Setup, Events and the Flows to Build
How to connect Checkout Champ to Klaviyo: the API key setup, the seven events it sends, the settings that matter, and the abandoned checkout and post-purchase flows to build.
Checkout Champ Review 2026: Pricing, Features and Who It's For
Checkout Champ review from an official partner agency: what it is, $300 a month plus 1% pricing, features, Shopify fit, security, billing terms and who should skip it.
Loop Subscriptions and Klaviyo: Integration and the Retention Flows to Build
How to connect Loop Subscriptions to Klaviyo, the 28 events and 18 profile properties it sends, and the dunning, upcoming order and cancellation flows to build.
Yotpo Alternatives (2026): 9 Review Apps Compared on Price and Klaviyo Fit
Yotpo alternatives for reviews in 2026: Judge.me, Okendo, REVIEWS.io, Loox, Stamped, Junip, Fera, Trustpilot and Klaviyo Reviews, priced, with Klaviyo fit.
Abandoned Cart Email Subject Lines: 30 Examples, With Why
Abandoned cart email subject lines for each email in the flow and for each reason shoppers abandon, with preview text, the reasoning, and what to avoid.
ActiveCampaign Pricing 2026: Plans, Add-ons, Real Cost
ActiveCampaign pricing as of October 2026: Starter, Plus, Pro and Enterprise by contact count, SMS credits, add-ons, and when Klaviyo is the better value.
AI Email Marketing for Ecommerce: What Works vs Hype
AI email marketing for ecommerce brands: which AI features earn revenue, which are hype, the AI email marketing tools worth knowing, and how to use them safely.
Attentive Pricing 2026: How the Quote Model Works
Attentive doesn't publish prices. How its pricing model works as of October 2026, what drives your quote, the hidden costs, and how to benchmark it.
Best SMS Marketing Platforms for Ecommerce (2026 Compared)
An honest comparison of SMS marketing platforms for ecommerce: Klaviyo, Postscript, Attentive, Omnisend, Recart, Emotive and more, with verified 2026 pricing.
BIMI for Ecommerce: VMC vs CMC and Is It Worth It?
What BIMI is, the DMARC and logo requirements, VMC vs CMC certificates, which inboxes show your logo, and whether a DTC brand should bother in 2026.
Birthday Email Marketing: Birthday + Anniversary Flows
How ecommerce brands run birthday and anniversary email flows: collecting birthdays, what to offer, timing, and the exact Klaviyo setup with unique codes.
Black Friday Email Subject Lines: 50+ for BFCM and Holidays
Original Black Friday, Cyber Monday and holiday email subject lines for ecommerce, organised by send across the 2026 calendar, with preview text and reasoning.
Brevo Pricing 2026: Plans, Email Volume and SMS Costs
Brevo pricing as of September 2026: Free, Starter, Standard and Professional by email volume, contact caps, SMS costs by country, and a fair Klaviyo comparison.
CAN-SPAM Act: Requirements, Penalties and Checklist
The CAN-SPAM Act for ecommerce: the FTC's 7 requirements, commercial vs transactional email, penalties of up to $53,088 per email, and a Klaviyo checklist.
Constant Contact Pricing 2026: Plans, Tiers and SMS
Constant Contact pricing as of September 2026: Lite, Standard and Premium by contact count, SMS add-on tiers, send overages, and when Klaviyo costs less.
Cross-Sell and Upsell Emails: Logic, Timing + Klaviyo
How to run cross-sell and upsell emails for ecommerce: the difference, when to send, examples, and how product recommendation logic works in Klaviyo.
Customer Lifetime Value (CLV): Formula and Examples
Customer lifetime value explained: the CLV formula (simple, margin and cohort), worked ecommerce and subscription examples, and how email and SMS raise LTV.
12 Customer Retention Strategies for Ecommerce Brands
12 customer retention strategies built for ecommerce and DTC brands: second-order flows, replenishment, VIP tiers, win-back and the metrics that prove it.
Customer Segmentation for Ecommerce: Types and Examples
Customer segmentation for ecommerce: the four types, 14 behavioural segmentation examples you can build in Klaviyo, and a six-step process for DTC brands.
DMARC, SPF and DKIM Explained for Ecommerce Marketers
DMARC, SPF and DKIM in plain English for ecommerce teams: how each works, setting them up with a Klaviyo branded sending domain, and reading DMARC reports.
Double Opt-In: When It's Worth It (and Klaviyo Setup)
Double opt-in vs single opt-in for ecommerce: when confirmation is worth the lost sign-ups, where it's expected by law (Germany), and the Klaviyo setup.
Drip Campaigns for Ecommerce: How They Map to Klaviyo Flows
What a drip campaign is, the email drip campaigns every ecommerce store needs, how many emails to send, and how each one maps to a Klaviyo flow.
Drip Pricing 2026: What the Drip Email Platform Costs
Drip email platform pricing as of September 2026: one plan priced by list size from $39 a month, send caps above 30,000 people, and how it compares to Klaviyo.
DTC Marketing: Meaning, Strategy and Examples
DTC marketing explained: what direct-to-consumer means, how it differs from B2C, the channel mix and unit economics that make it work, and where retention fits.
Ecommerce Email Subject Lines: 65 Examples by Occasion
Sale, promotional, launch, restock, welcome, cart, win-back and newsletter email subject lines for ecommerce brands, each with preview text and the reasoning.
Email Newsletter Templates for Ecommerce: 10 Layouts
Ecommerce email newsletter templates and HTML email template structures by email type, from sale campaigns to abandoned cart, plus Klaviyo's template options.
Email Click-Through Rate vs Click-to-Open Rate (CTOR)
What a good email click-through rate and click-to-open rate look like in 2026, how to calculate CTR and CTOR, and which to trust after Apple MPP.
Email Copywriting for Ecommerce: Examples and Frameworks
Email copywriting for ecommerce: the frameworks that sell, before-and-after copywriting email examples, and how to write subject lines, body copy and CTAs.
Email Banner Size and Email Dimensions: 2026 Cheat Sheet
The right email banner size, email width, and hero, header and product image dimensions for Klaviyo and every major inbox, with export and file-size targets.
Best Email Fonts: Email-Safe Fonts, Web Fonts and Fallbacks
The best email fonts for marketing emails: which email-safe fonts render everywhere, how web fonts and fallbacks work, and how to add custom fonts in Klaviyo.
2027 Email Marketing Calendar for Ecommerce (US + AU)
A month-by-month 2027 email and SMS marketing calendar for ecommerce: US and Australian retail dates, health and beauty awareness days, and the BFCM build-up.
15 Ecommerce Email Marketing Examples (and Why They Work)
Ecommerce email marketing examples by type: welcome, cart, post-purchase, replenishment, launch, sale, newsletter and win-back, with why each one works.
Email Marketing Laws: Australia, UK, EU, Canada and US
Email marketing laws compared: Australia's Spam Act, GDPR, PECR, CASL, CAN-SPAM and US state laws. Consent, unsubscribe deadlines and penalties in one table.
Average Email Open Rate in 2026 (and Why It Lies)
Average email open rate benchmarks from Klaviyo, Mailchimp and MailerLite, what counts as good for ecommerce, and why Apple Mail Privacy Protection broke it.
GIF in Email: How to Add One in Klaviyo, Gmail and Outlook
How to add a GIF in an email in Klaviyo, Gmail, Outlook and Apple Mail, plus file size limits, Outlook's first-frame problem and when GIFs actually lift clicks.
Gmail Promotions Tab: How to Get Out (and Should You?)
Why your emails land in Gmail's Promotions tab, what actually moves them to Primary, and an honest view on whether ecommerce brands should even try in 2026.
Gmail and Yahoo Sender Requirements: 2026 Checklist
Gmail and Yahoo bulk sender requirements, checked against their own pages: SPF, DKIM, DMARC, one-click unsubscribe, spam rates, and the Klaviyo fixes.
Holiday Email Examples: Black Friday, Thanksgiving + More
Holiday email examples and templates for ecommerce: the Black Friday sequence, Thanksgiving, Christmas, Mother's Day and EOFY, with subject lines and structure.
Klaviyo AI Features, Tested: What K:AI Actually Does
Every Klaviyo AI feature explained: Composer, Customer Agent, predictive analytics, Segments AI, Email AI and more. What each costs, needs, and is worth.
12 Best Klaviyo Alternatives (2026), Priced by Use Case
The 12 best Klaviyo alternatives for 2026 by use case, priced on each vendor's site: where each beats Klaviyo, where it doesn't, and when not to switch.
Klaviyo Bounced Emails: Soft vs Hard, and How to Fix Them
How Klaviyo handles soft and hard bounces, when it suppresses a profile, what a healthy bounce rate is, and step-by-step fixes for a bounce rate that's climbing.
Klaviyo CRM: Is Klaviyo a CRM for Ecommerce?
Is Klaviyo a CRM? What Klaviyo's B2C CRM does and doesn't do, how it compares with HubSpot and Salesforce for ecommerce, and which stack fits your store.
Klaviyo Email Templates: How to Build a Set That Converts
Klaviyo templates explained: the free library, drag-and-drop vs HTML vs hybrid, Shopify product blocks, and the template set every ecommerce store needs.
Klaviyo HubSpot Integration: B2B, B2C and Your Options
Klaviyo has no built-in HubSpot integration. When you need both, the partner apps and connectors that sync them, and what should flow which way.
Klaviyo Integrations: The Ecommerce Stack That Matters
Klaviyo lists 350+ integrations. Most ecommerce brands need six to eight. What each one syncs, which way the data flows, and how to wire them properly.
Klaviyo Mailchimp Integration: Sync, Run Both, Cut Over
What Klaviyo's Mailchimp integration syncs, why it only runs one way, how to run both platforms during a switch, and a cutover plan that avoids double sends.
Klaviyo Metrics Explained: Placed Order Rate, RPR and More
Klaviyo metrics explained: placed order rate, revenue per recipient, conversion rate and attributed revenue, with Klaviyo definitions and 2026 benchmarks.
Klaviyo Review 2026: An Agency's Honest Verdict
Our Klaviyo review from 800+ brands: real pros, real cons, hidden costs, and who Klaviyo is wrong for. Written by an official Klaviyo partner agency.
Klaviyo Sign-Up Forms: Types, Setup and Fixes (2026)
How to build Klaviyo forms that convert: the five form types, targeting, SMS consent, embedding on Shopify, and why your Klaviyo form isn't showing.
Klaviyo SMS Marketing: Setup, Pricing, Flows and Consent
How Klaviyo SMS marketing works in 2026: setup, sending numbers by country, the new dollar-based pricing, consent, quiet hours and the flows to build first.
Klaviyo SMS Pricing 2026: Rates, Credits and MMS Costs
Klaviyo SMS pricing, October 2026: $15 a month for 1,000 US texts and $125 for 10,000, carrier fees included. Credits are gone. Rates by country, MMS, extras.
Klaviyo vs Listrak (2026): Self-Serve vs Managed Retail
Klaviyo vs Listrak in 2026: published prices against a quote-only model, what Listrak's managed services include, and which retailers each one suits.
Klaviyo vs Privy (2026): Pop-Up Tool or Retention Platform?
Klaviyo vs Privy in 2026: email prices from 1,500 to 50,000 contacts, SMS and pop-up costs, and when Klaviyo's built-in forms make a pop-up app unnecessary.
Klaviyo WooCommerce: Setup, Plugin and Abandoned Cart
How to connect Klaviyo to WooCommerce with the official extension, what it syncs, how to test it, and how to build an abandoned cart flow that rebuilds the cart.
Lifecycle Marketing for Ecommerce: Stages, Flows, Examples
Lifecycle marketing for ecommerce and DTC brands: the six customer stages, the Klaviyo flows and campaigns for each, real examples and the metrics to track.
Mailchimp Pricing 2026: Every Plan and the Real Cost
Mailchimp pricing, October 2026: free to 250 contacts, then Essentials from $13, Standard from $20 and Premium from $350 a month. Every tier and hidden cost.
MailerLite Pricing 2026: Free, Comfort and Power Plans
MailerLite pricing as of October 2026: Free, Comfort and Power by subscriber count, how subscribers are counted, send limits, and when Klaviyo is worth more.
Newsletter Examples: 12 Ecommerce Formats and Why They Work
12 ecommerce newsletter examples and formats, from content-led journals to founder letters, with an analysis of why each works and how to build it in Klaviyo.
Omnisend Pricing 2026: Free, Standard and Pro Explained
Omnisend pricing as of October 2026: Free, Standard and Pro by contact count, SMS after the May 2026 change, billing rules, and an honest Klaviyo comparison.
Order Confirmation Email: What to Include + Klaviyo Setup
What to put in an order confirmation email, how shipping and other transactional emails differ, and how to move Shopify order notifications into Klaviyo.
Plain Text vs HTML Email: Which Works Better for Ecommerce?
Plain text vs HTML email for ecommerce: what the deliverability evidence really says, when plain text wins (flows, founder notes) and how to test it in Klaviyo.
Postscript Pricing 2026: Plans, SMS Rates, Carrier Fees
Postscript pricing as of October 2026: Starter, Growth and Professional plans, per-SMS and MMS rates, carrier fees, short codes, and what 10,000 texts cost.
Quiz Funnels for Ecommerce: Build One That Grows Your List
How to build an ecommerce quiz funnel for list growth: question design, email gating, Klaviyo flows that follow, tools, and supplement and skincare examples.
Replenishment Email Flow: Timing, Subscriptions + Klaviyo
How to time replenishment emails to real consumption, turn reorders into subscriptions, and build the flow in Klaviyo. Built for supplements and consumables.
Review Request Email: Timing, Templates + Klaviyo Setup
Write a review request email that gets replies: timing by product type, templates, and Klaviyo setup with Klaviyo Reviews, REVIEWS.io, Okendo, Yotpo or Judge.me.
RFM Analysis: Build an RFM Model and Segments in Klaviyo
RFM analysis and RFM segmentation for ecommerce: how to score recency, frequency and monetary value, interpret RFM scores, and build RFM segments in Klaviyo.
SMS Compliance Guide: TCPA, 10DLC, Quiet Hours and Opt-Outs
SMS marketing compliance for ecommerce: TCPA consent, 10DLC registration, quiet hours, opt-out keywords and disclosure wording, plus Australian and UK rules.
SMS Marketing Examples: 32 Ecommerce Texts by Use Case
32 original SMS marketing examples for ecommerce: welcome, abandoned cart, launch, back in stock, replenishment and VIP texts, with why each one works.
SMS Marketing for Ecommerce: The Complete Guide (2026)
What SMS marketing is, how text message marketing works for ecommerce, what it costs, the rules, and how to launch flows and campaigns that don't burn the list.
Structure/Function Claims: What Supplement Emails Can Say
What supplement emails and SMS can say: structure/function claims under DSHEA and 21 CFR 101.93, FTC substantiation, Australia's TGA rules and a checklist.
Subscription Ecommerce: Retention for Subscribe-and-Save
Subscription ecommerce retention for Shopify brands: churn saves, dunning, skip and swap, replenishment and the Klaviyo flows that keep subscribers.
Sunset Flow: How to Build One in Klaviyo (With Emails)
What a sunset flow is, when to sunset subscribers, and the exact Klaviyo segment, emails and suppression steps to protect deliverability and cut your bill.
What Is Klaviyo? What It Does and Who It's For (2026)
What is Klaviyo, what is it used for, and is it free on Shopify? A plain-English guide to the B2C CRM from an official Klaviyo partner agency.
Zero-Party Data vs First-Party Data for Ecommerce
Zero-party vs first-party data for ecommerce: definitions, examples, and how to collect both through quizzes, sign-up forms and preference centres in Klaviyo.
The BFCM Email Playbook I Shared on the Checkout Champ Podcast (After Sending a Billion Emails)
Pete Devkota joins Checkout Champ founder Matt Martorano to break down the full BFCM email playbook: why campaigns start 30–45 days early, hidden VIP landers, the partials goldmine, and the monetisation lag metric that quietly kills brands.
BFCM Email Marketing Strategy: How to Plan Your Black Friday Campaigns in Klaviyo
The BFCM 2026 email calendar (Black Friday is 27 November, Cyber Monday 30 November), the Klaviyo segments to build, and the deliverability plan to run it.
Klaviyo Pricing 2026: Every Tier, SMS Rates and Hidden Costs
Klaviyo pricing calculator and every 2026 tier: free to 250 profiles, $20 a month at 500, $150 at 10,000. SMS rates, add-ons and how to cut your bill.
How to Connect Klaviyo to Shopify the Right Way (Plus WooCommerce and HubSpot)
How to set up the Klaviyo Shopify integration: what it syncs, the tracking and catalog steps stores miss, the right cart trigger, and WooCommerce vs HubSpot.
ActiveCampaign vs Klaviyo (2026): Which Is Better for Ecommerce?
ActiveCampaign vs Klaviyo in 2026: prices at four list sizes (checked 10 October), CRM vs ecommerce features, pros and cons, and who should pick which.
Klaviyo vs Drip (2026): Pricing, Features and Which to Pick
Klaviyo vs Drip in 2026: prices from 2,500 to 50,000 people on both vendors' sites, why Drip has no native SMS yet, and which ecommerce brands each suits.
Klaviyo vs Postscript (2026): Which Is Better for SMS?
Klaviyo SMS vs Postscript in 2026: what 1,000 to 10,000 US texts cost on each (checked 10 October), features, pros and cons, and when a second platform pays.
Shopify Email Marketing: The DTC Playbook for Turning Email Into 30-40% of Revenue
How to turn email into a third of your Shopify store's revenue: the flows, segmentation, and deliverability that actually move the number. From the agency behind $250M+ in attributed email revenue across 800+ brands.
Klaviyo vs Yotpo and SMSBump (2026): Email, SMS, Reviews
Yotpo shut down its email and SMS products, SMSBump included. How Klaviyo compares with what Yotpo still sells, reviews and loyalty prices, and how to move SMS.
Klaviyo vs MailerLite (2026): Pricing and Ecommerce Fit
Klaviyo vs MailerLite in 2026: prices from 1,000 to 50,000 subscribers, what each free plan includes, and the point where an online store outgrows MailerLite.
Klaviyo vs SendGrid and Twilio SMS (2026): Which to Use
Klaviyo vs SendGrid and Twilio SMS in 2026: marketing vs transactional email, prices at 5,000 to 50,000 contacts, cost per 1,000 texts, and why stores run both.
Klaviyo vs Braze vs Iterable (2026): Ecommerce vs Enterprise
Klaviyo vs Braze vs Iterable in 2026: mid-market ecommerce vs enterprise, why only Klaviyo publishes prices, where Braze and Iterable win, and when to switch.
Klaviyo vs Constant Contact (2026): Pricing and Features
Klaviyo vs Constant Contact in 2026: US prices from 1,000 to 50,000 contacts, what each plan includes, and when an online store should move to Klaviyo.
Klaviyo vs Attentive (2026): SMS Pricing, Features and Using Both
Klaviyo vs Attentive in 2026: published vs quoted SMS pricing, features, pros and cons, and how the Attentive Klaviyo integration syncs if you run both.
Klaviyo vs HubSpot (2026): Which Wins for Ecommerce?
Klaviyo vs HubSpot in 2026: prices at 5,000 to 50,000 contacts (checked 10 October), Shopify depth, CRM features, pros and cons, and when to run both.
Price Drop and Back-in-Stock Flows in Klaviyo: Setup and What Converts
Back-in-stock and price drop flows are among the highest-RPR automations available. Here's the exact setup, copy strategy, and benchmarks.
Email Revenue Attribution in Klaviyo: What the Numbers Actually Mean
Klaviyo's revenue attribution numbers are often overstated and frequently misunderstood. Here's what they actually measure, and how to report more accurately.
Email + SMS Marketing in Klaviyo: How to Run Both Without Annoying Your Customers
SMS and email are complementary channels, when you know what belongs in each. Here's how to run both in Klaviyo without burning your list.
Email Marketing Benchmarks for Ecommerce: What Good Actually Looks Like in 2026
Klaviyo's 2026 email benchmarks by industry, sourced and dated, plus what good looks like by flow type and why open rates no longer measure performance.
Klaviyo vs Shopify Email (2026): When Free Isn't Enough
Klaviyo vs Shopify Email, now Shopify Messaging, in 2026: costs at 2,500 to 50,000 subscribers, where Shopify's free tier is enough, and when to switch.
Klaviyo vs Omnisend (2026): Which Is Right for Your Store?
Omnisend vs Klaviyo in 2026: prices at five list sizes (checked 10 October), SMS costs, pros and cons, and who should pick which, from a partner of both.
Email Popup Best Practices: What Actually Gets Subscribers (Without Destroying UX)
Most popups fail because of wrong timing, wrong offer, or wrong design. Here's the framework that consistently converts at 6%+.
Klaviyo vs Mailchimp (2026): Which Is Better, and Which Is Cheaper?
Klaviyo vs Mailchimp in 2026: prices at every list size (checked 10 October), pros and cons, who should pick which, and when Mailchimp is the cheaper pick.
How to Clean Your Klaviyo List Without Killing Your Revenue
List cleaning done wrong tanks deliverability and costs you revenue. Here's the exact process to clean your Klaviyo list without the damage.
Klaviyo Segmentation: The 7 Segments Every Ecommerce Store Needs
The highest-ROI lever in email marketing isn't better copy, it's sending the right message to the right person. Here are the 7 segments that do it.
How to Grow Your Email List for Ecommerce: 8 Strategies That Actually Work
Most list growth advice chases subscriber volume, not buyer quality. Here are 8 strategies that build a list worth owning.
Post-Purchase Email Flow: The Sequence That Turns One-Time Buyers Into Repeat Customers
The post-purchase window is the highest-leverage moment in your customer lifecycle. Here's the 5-email sequence that builds LTV from day one.
Why Your Klaviyo Emails Are Going to Spam (And How to Fix It)
The real reasons Klaviyo emails land in spam aren't the ones you think. Here's how to diagnose and fix spam placement fast.
Email Deliverability for Ecommerce: What's Actually Hurting Your Inbox Placement
Deliverability isn't about open rates. Here's what actually determines inbox placement, and the Klaviyo settings that matter most.
How Email Analytics Can 2x Your eCommerce Revenue
A deep dive into the metrics that actually move revenue for ecommerce brands, and how to use them to compound results.
10 Email Marketing Flows Every Ecommerce Brand Needs
The ten automated flows we build for every ecommerce brand, what each one should do, and the sourced Klaviyo benchmarks to judge them by.
The Ecommerce Brand's Guide to Klaviyo Segmentation
How to segment your list based on purchase cycles, product affinity, and engagement to maximise revenue per send.
Why 40% of Your Revenue Should Come From Email
The benchmark most ecommerce brands are missing, and a clear path to get there with Klaviyo.
A/B Testing Your Email Subject Lines: A Complete Guide
A systematic approach to subject line testing that compounds results over time, without burning your list on bad experiments.
Email isn't a landing page.
A field manual on engineering email for revenue. The four forces of email, the lie marketers sold, and why pretty emails lose.