Craft impactful emails unique to every customer

Deliver immersive, AI-powered experiences that stand out in the inbox – and convert. Use customer data combined with dynamic content

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Craft impactful emails unique to every customer

AI That Delivers More Than Promises

Harness the combined power of Generative and Predictive AI. Create, target,
and optimize email programs that outperform, every time.

Content generation

Boost team efficiency by automating subject lines and content in seconds with Insider One’s world-leading AI solution.

Product recommendations

Cross-sell and upsell with personalized recommendations tailored to your subscribers' behavior, actions, and preferences.

Predictive segments

Drive conversions by targeting consumers based on expected behavior or actions, including likelihood to purchase or churn, customer lifetime value, discount affinity.

Localization

Incorporate AI-led localization to translate and localize campaigns with one click, based on the recipients’ language of choice.

Send time optimization

Leverage data-driven insights to determine the most optimal times to send your emails, increasing the likelihood of them being opened and read by your recipients.

Why Marketers Choose Insider One
Email-First Engagement

Email, reinvented. Transform this trusted channel into one customers can’t ignore.
Turn every send into a win with personalization, automation, and analytics that drive results at scale.

Drag, drop, or code it yourself

Build emails your way with our intuitive editor. Drag and drop text, images, and elements for instant layouts — or dive into the code when you want full control. Preview in real time to ensure every email looks flawless on any device.

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Enrich experiences with
AMP for Email

Still relying on boring, static emails? Insider enables marketers to create engaging email content that captivates customers within the inbox. Embed forms, countdowns, carousels, and accordions into.

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Optimize performance with
AI-powered experimentation

Test multiple variations at once with A/B/n experiments, then automatically serve the top performer based on real-time results. Higher email performance, less manual work.

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Real-time email personalization
upon open

Why settle for static emails. With Insider One, every message comes alive the moment it’s opened. Embed forms, countdowns, carousels, and accordions that adapt directly in the inbox — skyrocketing active engagement.

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Email marketing software built for scale

Everything you need to send smarter, reach further,
and drive measurable growth, and revenue from the inbox.

Peak Deliverability

Take control of deliverability with spam tests, preview on 100+ devices, and automated warm-ups to boost IP reputation.

Advanced Segmentation

Target with precision with 120+ segments, including dynamic, predictive, and behavior-based preferences.

Customer Data Platform

Our email solution is built with a CDP at it's core ensuring seamless data unification and inbox relevance.

Insights and reporting

Track performance, revenue, and subscriber health with detailed dashboards and proactive insights.

Quick Migration

Get up and running in weeks. Migrate your templates and contacts easily with our automatic migrator tool.

Subscriber Health

Grow subscribers with interactive opt-ins, manage preferences, and set frequency caps to avoid over-messaging.

From Email to every channel

Go beyond the inbox to deliver seamless experiences across 12+ channels to reach customers wherever they are — all from one platform.

From Email to every channel From Email to every channel

CASE STUDY

Slazenger achieves 49X ROI by leveraging email in its omnichannel strategy

CASE STUDY

Slazenger achieves 49X ROI by leveraging email in its omnichannel strategy

“Insider One enabled us to build relevant and timely campaigns across nearly 30 different customer segments. We built personalized, omnichannel user experiences and combined this with on-site gamification, which helped us gain a 700% increase in customer acquisition and 49X ROI within just two months thanks to Insider One.”

Ecommerce Director

Slazenger

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Loved by brands, trusted by analysts

IDC AI Gartner
MQ Gartner
VOC MMH Gartner
VOC Pers. Forrester
Wave IDC
Omnichannel G2
IDC AI Gartner
MQ Gartner
VOC MMH Gartner
VOC Pers. Forrester
Wave IDC
Omnichannel G2

Insider One is a Leader in the IDC MarketScape: Worldwide AI-Enabled Marketing Platforms for Enterprise Companies 2025

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AI

Journey Orchestration

Unifying Customer Data

Insider One named leader
in the 2023 Gartner Magic Quadrant for Personalization Engines

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Marketing 3.99/5.0

Digital Commerce 4.11/5.0

Services and Support 3.94/5.0

Insider One Recognized as a 2025 Gartner Peer Insights™ Customers’ Choice for Multichannel Marketing Hubs

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Product Capabilities 4.9/5.0

Sales Experience 4.9/5.0

Deployment Experience 4.8/5.0

Support Experience 4.9/5.0

Insider One Recognized as a Gartner Peer Insights™ Customers’ Choice for Personalization Engines ‘25

Overall Rating 4.8/5.0

Support Experience 4.9/5.0

Sales Experience 4.7/5.0

Willlingness to Recommend 100/100

Insider One recognized as a Leader in The Forrester Wave: Cross-Channel Campaign Management (Independent Platforms)

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Personalization

Innovation Strategy

Platform Architecture

Predictive Analytics

Machine Learning

Insider One named a leader in the IDC MarketScape for Worldwide omnichannel Marketing Platforms

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Personalization

Channel Breadth

AI / Machine Learning

Insider retains #1 Leadership across 11 categories in G2’s Winter’26 reports

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Personalization Software

CDP

Mobile Marketing

SMS Marketing

WhatsApp Marketing

6 more categories

“Our email campaigns saw a 560% increase in CVR compared to our other ad channels. We used smart recommendations to upsell products, and the users who visited our website from these email campaigns also showed a decrease of 86% in bounce rates.”

Marketing Manager
International Electronics Retailer

“What I like best about Insider One is the fact that it allows us to provide an individualized onsite experience for our customers according to their interests. Ever since creating interest-based personalized onsite experiences for our customers, we have seen an uplift in conversion rate and customer retention.’’

Digital Marketing Manager
Global Department Store

Become Unstoppable
with Insider One

Want to generate more revenue and growth from your customer experience initiatives? .

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Frequently Asked Questions

What is email marketing?

Email marketing is a digital marketing strategy that involves sending commercial messages or content to a group of people via email.

How to do email marketing?

To do email marketing, you need to build a targeted email list, create compelling content, and use an email marketing platform to send and track your campaigns effectively.

Is email marketing effective?

Yes, email marketing is effective as it allows businesses to reach a targeted audience, build relationships, and drive conversions at a relatively low cost.

What is email marketing software?

Email marketing software, like Insider, helps businesses manage and automate their email marketing campaigns, including creating, sending, and analyzing email campaigns.

What are the types of email marketing?

The types of email marketing include promotional emails (discounts, offers), transactional emails (order confirmations), newsletters, welcome emails, and re-engagement emails (win-back campaigns).