Claude is the assistant from Anthropic, the company that created the MCP protocol. Add Mailpro as a custom connector: Claude reads your statistics, writes your emails and prepares your SMS in your real account.
Claude is developed by Anthropic, an American company founded in 2021 in San Francisco. In late 2024, Anthropic published the Model Context Protocol, the standard used by the Mailpro server: Claude is where MCP connectors feel most natural.
Claude is known for long, nuanced writing, document analysis and code. In email marketing, those are exactly the tasks that take time: making sense of statistics, writing a follow-up in the right tone, turning one message into several versions.
Connectors work on the web, in the desktop app and on mobile: a campaign prepared at the office can be reviewed and approved from a phone.
| Developer | Anthropic, San Francisco (United States) |
|---|---|
| Feature name | Custom connectors |
| Plans | Free (one custom connector), Pro, Max, Team, Enterprise |
| Sign-in | OAuth, with Claude registering itself with Mailpro automatically |
| Where it works | Web, desktop app, mobile |
Claude reads the opens, clicks and bounces of your campaigns and explains what worked, in plain sentences.
Give it a past email: it writes the follow-up in the same style and saves it as a template in Mailpro.
Welcome, follow-up, last reminder: Claude prepares the three templates and the campaigns, which wait for your approval.
It spots outdated lists, unsubscribes and bounces before you launch a send.
Free, Pro or Max plans: in Claude, open Customize › Connectors, click + then Add custom connector.
Give it a name (“Mailpro”) and paste the server address shown in your Mailpro account, on the AI Assistants (MCP) page.
Claude opens the Mailpro sign-in page: sign in, review the permissions requested and accept.
In Mailpro, on the AI Assistants page, set how it sends: with approval or direct, daily cap, notification.
Team and Enterprise plans: an organization owner first adds the connector in the organization settings (Connectors › Add › Custom), then each member clicks Connect.
On Team, Enterprise and API plans, Anthropic does not train its models on your conversations. On personal plans, it depends on a privacy setting in your Claude account: check it if you work with customer data.
It is not your computer that calls Mailpro, but Claude from Anthropic's cloud: that is why the Mailpro MCP server is public and protected by OAuth.
On Team and Enterprise, each member signs in with their own Mailpro account: permissions and sends stay those of the signed-in person.
On the Mailpro side, the rules are the same for every assistant: by default, each send waits for your approval, or goes out directly within a daily cap; a log keeps track of everything, and one click suspends all sends. The details.
Yes: Claude's free plan allows one custom connector. Paid plans allow more.
Only if you allow it: by default, every send waits for your approval in Mailpro. You can switch Claude to direct sending, with a daily cap.
No. The connector is set up in Claude in a few clicks, with no software and no API key to copy.
All questions: AI assistants FAQ.
Create a free Mailpro account, connect your assistant from the AI Assistants page of your account, and stay in control of every send.
