Help your partners level up their newsletters

Join the Letterhead affiliate program

We help publishers and marketers get more ROI from their newsletters and build lasting relationships with the people they care about.

Technology, agency, and content affiliates are a big part of how we grow.

Through our affiliate program, your customers and partners get discounted Letterhead and white glove, personalized onboarding and coaching. 

We pay you 30% of the revenue from each customer you refer, for as long as they're a Letterhead customer.

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Become an affiliate

What to expect

👋 First, let's get to know each other. Tell us a bit about yourself and how you'd share Letterhead with your audience. 
👀 Partnership chat. In a brief call we'll discuss how we can grow together, how we can support your work, and how the program works.

📑 Listing on our partner gallery so our customers can find you and learn about your work, too.  

✉️ We pay 30% of monthly revenue to you for each customer you refer, as long as they're a customer.





Trusted by 150+ leading publishers


A platform that cares about your users as much as you do

The best newsletters are built on trust and valuable content. Privacy, sender reputation, and list quality are essential, but hard to understand and maintain.

Email is the best source of crucial first-party data, and the most important metrics are how your community grows and engages over time, and how that converts to revenue.

Letterhead's designed from the ground up to help.

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Get more engagement and revenue from your email list



Build engaging newsletters designed to increase open rates and look great in every inbox

📎 Curations


Collect and aggregate content from around the web, social, and RSS feeds to quickly create valuable newsletters

📩 Multi-newsletter


Full support for running multiple brands, lists, and newsletters, with unique strategies but unified data and management

📢 Promotions


Sell and manage advertisements, sponsorships, and internal promotions in your newsletter

💸 Ad marketplace


Select from ad and cross-promotion offers from hundreds of top brands and publishers, to monetize every email you send

📈 Subscriber management


A powerful tagging system, engagement-based segments, list health analytics, domain reputation recommendations, and more tools to grow engagement 

We know newsletters

Our team has a probably-unhealthy obsession with email. We built WhereBy.Us, a network of local newsletter communities that reaches 75,000 locals every day and generates millions of dollars in annual revenue. We ran into almost every software problem you can imagine. So we built our own platform to help everyone build stronger communities through email.


Best practices for email newsletters

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Tips, tricks, news, best practices, and more, delivered weekly. It'd be weird if we didn't have our own newsletter, right?