Go from Website to Newsletter with the Letterhead Wordpress Plugin

For many teams, newsletters and websites have lived in separate worlds. 

You publish a post on your WordPress site, then copy the link, image, and summary into Letterhead to share it with your readers. Over time, that manual work adds up, especially if you run multiple channels or sites, making it incredibly complicated to engage with your audiences wherever they are. 

The Letterhead WordPress Plugin changes that. It automatically syncs new and updated WordPress posts into your Curations Library, so your latest website content is always ready to share in newsletters, no exporting or manual copying required. For teams using WordPress as their content engine, this plugin turns Letterhead into a natural extension of your website source of truth, handling delivery, personalization, and engagement.

Connect once, publish everywhere

The WordPress Plugin connects your website to Letterhead at the company level, so your team can map one or more WordPress sites to the right Letterhead channels. Once installed and authenticated, it automatically pulls in new or updated posts and creates matching curations in Letterhead, complete with title, URL, tags, and featured images that are all organized, editable, and ready to send. 

With this plugin, you can: 

• Map multiple Wordpress sites to specific Letterhead channels. Works for both single-site and multisite WordPress setups.
• See new posts instantly in Letterhead. New and updated posts appear instantly in your mapped channels as curations.
• Keep your metadata organized.  WordPress categories map directly to Letterhead tags (prefixed with “wp-”) for consistent organization.
• Stay in control. Decide whether synced curations auto-archive after 30 days or remain active.
• Configure everything from WordPress. Manage authentication, channel mapping, and preferences from your WordPress dashboard.

Building with content-heavy teams in mind 

We’ve always seen Letterhead as more than a place to send emails. It’s a system for how content flows, from creation to distribution to insight. This Wordpress plugin deepens that connection, and gives marketing and editorial teams a shared workspace that mirrors how they actually publish. For multi-brand organizations, it also introduces scalable governance: consistent tagging, automated archiving, and better visibility across channels.

And this is just the beginning. The WordPress Plugin lays the groundwork for deeper cross-platform intelligence in Letterhead, from performance feedback loops to predictive content recommendations built on shared event data.

Getting started

The plugin is available now for Letterhead customers with company access.

1. Install it from the WordPress Plugin Directory.
2. Connect your Letterhead account via API key. 
3. Map your WordPress sites to the right channels.

For more information, check out our support documentation here. 

We’re excited to bring this to the Letterhead and WordPress communities, and even more excited to see what you create with it.