Your email program has outgrown your email service provider.
Grow from email to SMS, RCS, push, and WhatsApp without switching platforms. Every email runs on real-time customer data, with deliverability you control.
EMAIL SERVICE PROVIDER OVERVIEW
What is an email service provider (ESP)?
An email service provider (ESP) is software that lets businesses build, send, and measure marketing and transactional email at scale. A modern ESP also manages subscriber data and segments, personalizes content for each recipient, automates triggered emails like welcome series and cart reminders, and protects deliverability so messages reach the inbox instead of spam.
Your ESP might be the reason your emails get ignored.
Your emails look the same
Your ESP knows a subscriber’s first name, but not what they browsed this morning or bought last week.
You find out about deliverability too late
By the time engagement drops, your sender reputation has already taken the hit.
Growth means another migration
The day you want to add SMS or push, your ESP can’t follow, and you’re facing another painful switch.
How Iterable works as your ESP.
Iterable works as a full-featured ESP, built into a cross-channel customer engagement platform. Every email reflects what each subscriber is doing right now, and every other channel runs on the same customer data.
Use everything you know about each subscriber
Bring in what customers do in your app, on your site, and in warehouses like Snowflake and BigQuery, so every email reflects their latest behavior.
Create personalized emails from reusable building blocks
Templates and content blocks fill in the right products and offers for each reader, while Nova Agent drafts the copy and the Handlebars logic behind it. No code required.
Land in the inbox, then keep getting better
Send from high-reputation shared IPs or your own dedicated IP. Then Experimentation Agent, powered by Nova Intelligence, builds your test variants and recommends the winner.
Email marketing tools built to reach the inbox and drive revenue.
Deliverability support
Iterable’s deliverability consultants help you plan warm-ups, monitor your Gmail reputation with Google Postmaster Tools, and troubleshoot issues as soon as they appear.
1:1 Personalization
Automatically fill each email with the products, content, and offers that match what each subscriber has browsed, bought, or told you.
Triggered Email
Welcome series, cart reminders, onboarding, and win-backs go out right as customers act, not on next week’s schedule.
Templates and content blocks
Build newsletters, promotions, and breaking-news alerts from reusable templates and content blocks, so your team ships more and rebuilds less.
AI Optimization
AI picks the best send time for each subscriber, frequency caps prevent fatigue, and built-in tests show what actually works.
Modern inbox features
Interactive AMP emails, one-click unsubscribe, and Gmail Promotions tab annotations make your emails easier to engage with and easier to trust.
Use Cases
Email marketing tools built to reach the inbox and drive revenue.
Open an email to see how brands use it.
How brands get more from every email.
$100K+ saved in acquisition costs
Newsletter content tailored to each reader’s profile drove 15,000 new subscriptions in six months, saving over $100K in acquisition costs.
7% more e-commerce clicks
Catalog-powered personalization drove a 7% increase in e-commerce clicks and cut template work by 80%.
50M+ personalized weekly emails
Grammarly’s personalized weekly Insights email, built on warehouse data and` Iterable’s AI, now reaches over 50 million users.
Why Iterable?
Run your strategy your way, with AI doing the everyday work.
AI that works for you.
Nova takes on everyday tasks like analysis, QA, and building segments, and always-on agents watch performance between campaigns, so your time goes to the strategy.
Move as fast as your ideas.
Build, test, and launch audiences, journeys, and personalization yourself, so good ideas go live while they still matter instead of waiting on technical teams.
Flexibility by design, supported at every step.
Iterable works with your data as it’s structured and the stack you’ve chosen, and our team and partners stay with you from onboarding and migration through every program after.
See your email program running in Iterable.
Here’s what to expect in your demo.
Your Iterable demo agenda
Your email program today
Tell us what you send today, how you send it, and where it falls short.
Your emails, live in Iterable
See templates, personalization, and deliverability built around your own use cases.
A clear switching plan
Leave knowing how a move would work, including a dedicated IP warm-up if you need one, with Iterable’s services team supporting setup and launch.
COMMON QUESTIONS
Email service provider FAQs
An ESP is software for building, sending, and measuring email at scale. Modern ESPs also handle segmentation, personalization, triggered automation, and deliverability.
An ESP focuses on email. A marketing automation platform coordinates many channels from shared customer data. Iterable works as your ESP within a cross-channel customer engagement platform, so you can start with email and expand without switching tools.
Both. By default, Iterable sends through shared Amazon SES IPs reserved for high-reputation senders. Brands sending at least 150,000 messages a month may benefit from a dedicated IP through Mailgun, SendGrid, or SparkPost.
Iterable’s services team plans and runs the move with you, from connecting your data to launching your first campaigns. The biggest variable is sender reputation: if you move to a dedicated IP, plan for a structured warm-up of about four to eight weeks.
Yes. Iterable supports AMP for email, including sending AMP email to Gmail.
Yes. Iterable supports easy unsubscribe and List-Unsubscribe email headers.
Yes. Every channel runs on the same platform, profiles, and journey builder, so adding one doesn’t require a new tool or another migration.
See how Iterable runs your email today and every channel you add next.