New Email marketing MCP server · Beta

Connect your email marketing to ChatGPT and Claude.

Mailrelay’s free MCP server lets your AI assistant check results, organise contacts and create campaigns, just by asking.

Compare open and click rates of my last 5 campaigns.

Works as a connector in ChatGPT and Claude, and as an MCP server in Claude Code, VS Code and other MCP clients

What you can ask

Your whole email marketing account, in one conversation

Ask in your own words. Your assistant finds the right data in Mailrelay, with the permissions you grant.

  • Reporting Results and comparisons without exporting a thing.
  • Contacts Search, tag and organise subscribers.
  • Campaigns Describe an email campaign, get a draft to review.
  • SMS & WhatsApp Every channel in the same conversation.

Reporting

Your email campaign results, explained

Ask how your email campaigns performed and get open and click rates compared and summarised.

  • Which links got the most clicks?
  • Summary of my stats this month

Compare open and click rates of my last 5 campaigns.

Autumn sale leads on both opens and clicks. Your two newsletters perform very similarly.

Open rate · click rate

Autumn sale 41.2% 6.8%
October newsletter 34.5% 4.1%
New collection 31.9% 5.2%
Webinar invite 27.4% 3.3%
September newsletter 25.8% 2.9%

Contacts

Find and organise your subscribers

Search your mailing lists, tag subscribers and create custom fields without filters or imports.

  • Who unsubscribed last week, and why?
  • Create a “Company size” dropdown

Add the tag “VIP” to [email protected].

Done. Anna is now tagged as VIP.

Anna Martín [email protected] · Subscribed since March 2024 VIP Customers Newsletter

Campaigns

Create email campaigns by describing them

Describe the newsletter or campaign you want. Your assistant designs it, uses your usual sender and saves it as a draft in Mailrelay, ready for you to review and send.

  • Send a test of that draft to me
  • Pause the campaign that’s sending

Draft a campaign announcing our autumn sale, using my usual sender.

Your draft “Autumn sale: up to 40% off” is saved in Mailrelay, from Bloom Store. Want me to send you a test?

Bloom View in browser
Autumn sale · This week only Up to
40% off

Hi Laura,

Our autumn collection has arrived, and for one week everything is up to 40% off. Cosy throws, handmade vases and candles for slower evenings at home.

Shop the sale
Linen throw €49 €34
Ceramic vase €32 €22
Amber candle €18 €12

SMS & WhatsApp

SMS and WhatsApp marketing, in the same chat

Check deliveries, reads and template approvals for your SMS and WhatsApp campaigns without switching screens.

  • Templates waiting for approval
  • Yesterday’s SMS delivery status

How many messages of my last WhatsApp campaign were delivered and read?

“Summer sale is live” reached almost everyone, and 85% of recipients read it.

1,248sent
98.6%delivered
85.3%read

Setup

Connect it in a few clicks

No API key and no code. You sign in to Mailrelay and approve.

1

Copy your server URL

https://[YOUR-ACCOUNT]/mcp

2

Add it as a connector

As a custom connector in ChatGPT or Claude, or an MCP server in Claude Code or VS Code.

3

Log in and choose access

Read-only, read and write (default) or full access. Sending and deleting are off unless you allow them.

FAQ

Questions, answered

Step-by-step instructions for each assistant are in the setup guide.

Can the assistant send campaigns without asking?

No. Without the Send permission, it can only prepare drafts. Every action is recorded under the Mailrelay user who authorised the connection.

Is the Mailrelay MCP server free?

Yes. It’s included in every plan, including the free account. It’s currently in beta.

Which AI assistants are supported?

Any assistant that supports remote MCP servers with OAuth: ChatGPT and Claude as custom connectors, plus Claude Code, VS Code and other MCP clients. No API key needed.

Can I limit what the assistant can do?

Yes. Choose read-only, read and write (default) or full access. Sending and deleting stay off unless you allow them. Permissions apply to whole areas, such as contacts or email campaigns; limiting access to one group or campaign isn’t available yet.

What is an MCP server?

MCP (Model Context Protocol) is an open standard that lets AI assistants connect to other apps. Mailrelay’s MCP server gives your assistant access to your email marketing account, with the permissions you choose.

Let your AI do the busywork

Create your free email marketing account and connect it to the AI assistant you use every day.