Tuesday, September 1, 2026

Bigger free tier, metrics API, and MCP spec support

Plus agent plugins, suppression list control, and our first conference.
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Hey, it's Zeno.

This month, we gave every account 3 free domains on the free tier, we've added custom suppression lists, support for agent plugins and the new MCP spec.

We also dropped an entire headless analytics API that's extensible so we can continue to add additional metrics to fit your needs.

And don't forget our first-ever conference, Resend Forward, is quickly approaching.

Quick question:

What feature should we put on our roadmap?

Just hit reply. We read every answer.


3 Domains for all

A dark, abstract sphere with concentric rings is shown behind the text "More Domains on the Free Tier" and a small "Changelog" button

The free tier now includes 3 verified domains, so you can build and send from more projects without upgrading. Every free team can now verify up to three domains, in any region, at no cost.

→ Read the changelog


Headless email analytics

A screenshot shows the "Email Metrics API" title with code snippets and programming language options like Node.js, PHP, and Python.

Get data about your emails, from the send volume to unsubscribe rate, grouped or filtered by the period, domain, broadcast, or email.

→ Try the new Metrics API


A new way to verify your email

A dark screen displays the text "Email Verification API" with a "Guide" button above it, and a tablet showing a "Success!" message below

A new proposal aims to enable email verification directly within the browser. We covered all the details, and built a library for you to try it out.

→ Read the blog post


Resend now supports Agent Plugins

A diagram illustrates the structure of an agent plugin with files like plugin.json, skills, and mcp.json.

Resend Skills added support for the Agent Plugins Standard, an open, vendor-neutral standard for packaging skills and MCP servers into a portable plugin.

→ Check the guide


Manage your own suppressions

A screenshot displays a "Suppressions" list with email addresses and their origins, alongside a "Changelog" section with the title "Suppression

Spam complaints and hard bounces can wreck your sending reputation, which is why Resend has always suppressed those addresses behind the scenes. Now you can see, manage, and automate your suppression list yourself. Here's how the new tools work.

→ Learn more about Suppressions


Resend supports the new MCP spec

A dark, square icon with a white, stylized "m" logo is displayed on a black background, with the text "Support for the New MCP

The MCP specification just released a major upgrade, and now Resend's remote MCP server supports this latest version.

→ Read the changelog


A full video tour

YouTube video

Take a full tour of Resend, the email API built for developers. In under 8 minutes, see how to authenticate your domain, send transactional and marketing emails, build automations, and debug with full observability, all from the dashboard, API, SDKs, CLI, or MCP.

→ Watch the video


For builders who care

Resend Forward. An event for builders. Oct 21, 2026. San Francisco.

It's easier than ever to make software, fast. Today, true artisans are differentiated on their attention to detail.

We're hosting a conference to gather builders who still care about their craft. Those who:

  • Lose sleep over an abstraction

  • Tweak designs pixel-by-pixel

  • Spend time fixing things most will never notice

Resend Forward takes place October 21, 2026 in San Francisco.

Since you're a user, we've set aside a reduced rate for you.

→ Attend Forward


Happy sending,
Zeno Rocha

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Bigger free tier, metrics API, and MCP spec support

Plus agent plugins, suppression list control, and our first conference.  ‌​‍‎‏ ‌​‍‎‏ ‌​‍‎‏ ‌​‍‎‏ ‌​‍‎‏ ‌​‍‎‏ ‌​‍‎‏ ‌​‍‎‏ ‌​‍‎‏...

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