A unified platform
for content, audience,
and delivery
Everything you need
to publish and send
newsletters
Letterhead Core brings creation, subscriber management, and reliable delivery together in one environment, so teams can publish high-performing newsletters without juggling tools or external ESPs. Best for teams looking for an all-in-one experience.
Seamlessly integrated publishing
Plan, build, and publish newsletters in one environment using reusable templates and brand controls.
Robust audience management
Grow, segment, and maintain subscriber lists with clean data, preferences, and signup tools.
Comprehensive deliverability support
Get smart warmup support, domain configuration guidance, and real-time monitoring.
Insights that move the needle
Track opens, clicks, growth, and engagement with dashboards built for newsletters.
Create and ship polished newsletters like an expert
Turn fragmented tools into one connected production-and-delivery pipeline. Every edition moves through a clear workflow, from content intake to inbox.
Smart content intake
Pull stories, assets, and updates from your CMS, RSS, or saved sources into a unified content feed.
Easy to manage processes
Move drafts through editing, approvals, and publishing with clear roles and real-time status.
Brand-safe assembly
Use locked styles, components, and templates to create consistent, on-brand editions fast.
One-click delivery
Send directly from Letterhead with built-in testing, previews, and scheduling.
Grow your audience and keep your deliverability strong
Letterhead Core centralizes subscriber management and deliverability oversight to help you reach more readers and protect long-term domain health.
- Monitor bounces, inactivity, and engagement to maintain list quality
- Get step-by-step support for DNS setup, domain alignment, and warmup
- Automatically adjust suppression and targeting based on engagement
- See which segments and formats drive the strongest response
Understand what drives performance and use it to grow
Letterhead Core centralizes list management, automates reputation-safe sending, and surfaces engagement patterns so every edition reaches the audience you worked hard to build.
Clean subscriber management
Break down opens, clicks, CTR, and reading behavior for every send.
Reputation-safe sending
Automated guardrails reduce risk and protect inbox placement.
Guided domain setup
Clear steps for authentication and warmup from day one.
Behavior-driven insights
View pacing, performance, and partner impact to improve pricing and forecasting.
