Can I use templates with the send_transactional_email tool?

Yes, you can specify a `template_id` within the `email_json` body to use pre-defined designs created in your MailerSend account.

How do I filter activity for a specific event like 'opened'?

Use the `list_domain_activity` tool and provide the `params` string with the desired event types (e.g., `event[]=opened`).

Is there a limit to bulk email requests?

The `send_bulk_transactional_emails` tool supports up to 500 email objects per single request as per MailerSend API limits.

MailerSend MCP Server for AutoGen 10 tools — connect in under 2 minutes

Name: MailerSend
Availability: InStock
Author: Vinkius

microsoft.github.io/autogen/docs/tools/mcp-tools

Built by Vinkius GDPR 10 Tools Framework

Microsoft AutoGen enables multi-agent conversations where agents negotiate, delegate, and execute tasks collaboratively. Add MailerSend as an MCP tool provider through Vinkius and every agent in the group can access live data and take action.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from autogen_agentchat.agents import AssistantAgent
from autogen_ext.tools.mcp import McpWorkbench

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    async with McpWorkbench(
        server_params={"url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"},
        transport="streamable_http",
    ) as workbench:
        tools = await workbench.list_tools()
        agent = AssistantAgent(
            name="mailersend_agent",
            tools=tools,
            system_message=(
                "You help users with MailerSend. "
                "10 tools available."
            ),
        )
        print(f"Agent ready with {len(tools)} tools")

asyncio.run(main())

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Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About MailerSend MCP Server

Connect your MailerSend account to any AI agent to automate your transactional messaging and domain management. This MCP server enables your agent to send single or bulk emails, monitor domain verification, and track email activity directly from natural language interfaces.

AutoGen enables multi-agent conversations where agents negotiate, delegate, and collaboratively use MailerSend tools. Connect 10 tools through Vinkius and assign role-based access. a data analyst queries while a reviewer validates, with optional human-in-the-loop approval for sensitive operations.

What you can do

Email Delivery — Send transactional emails instantly with support for HTML, text, and templates
Bulk Operations — Send up to 500 emails in a single batch request for high-volume communications
Domain Oversight — List sender domains, retrieve DNS settings, and trigger ownership verification checks
Recipient Management — List and query recipients from your account database to track engagement
Activity Auditing — Access real-time logs of email events (sent, delivered, opened, clicked) for any domain
Message Insight — Retrieve complete metadata and lifecycle history for individual sent messages

The MailerSend MCP Server exposes 10 tools through the Vinkius. Connect it to AutoGen in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect MailerSend to AutoGen via MCP

Follow these steps to integrate the MailerSend MCP Server with AutoGen.

Install AutoGen

Run pip install "autogen-ext[mcp]"

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Integrate into workflow

Use the agent in your AutoGen multi-agent orchestration

Explore tools

The workbench discovers 10 tools from MailerSend automatically

Why Use AutoGen with the MailerSend MCP Server

AutoGen provides unique advantages when paired with MailerSend through the Model Context Protocol.

Multi-agent conversations: multiple AutoGen agents discuss, delegate, and collaboratively use MailerSend tools to solve complex tasks

Role-based architecture lets you assign MailerSend tool access to specific agents. a data analyst queries while a reviewer validates

Human-in-the-loop support: agents can pause for human approval before executing sensitive MailerSend tool calls

Code execution sandbox: AutoGen agents can write and run code that processes MailerSend tool responses in an isolated environment

MailerSend + AutoGen Use Cases

Practical scenarios where AutoGen combined with the MailerSend MCP Server delivers measurable value.

Collaborative analysis: one agent queries MailerSend while another validates results and a third generates the final report

Automated review pipelines: a researcher agent fetches data from MailerSend, a critic agent evaluates quality, and a writer produces the output

Interactive planning: agents negotiate task allocation using MailerSend data to make informed decisions about resource distribution

Code generation with live data: an AutoGen coder agent writes scripts that process MailerSend responses in a sandboxed execution environment

MailerSend MCP Tools for AutoGen (10)

These 10 tools become available when you connect MailerSend to AutoGen via MCP:

get_recipient_details

Get details for a specific recipient

get_sender_domain_details

Get details for a specific domain

get_sent_message_details

Get details for a specific sent message

list_domain_activity

List email activity for a specific domain

list_email_recipients

List all recipients in the account database

list_sender_domains

List all verified and unverified sender domains

list_sent_messages

List all sent email messages

send_bulk_transactional_emails

Send multiple transactional emails in one batch

send_transactional_email

Requires a JSON body with sender, recipient, and content (text/html) or template ID. Send a single transactional email

verify_sender_domain

Trigger a DNS verification check for a domain

Example Prompts for MailerSend in AutoGen

Ready-to-use prompts you can give your AutoGen agent to start working with MailerSend immediately.

"Send a transactional email to 'user@example.com' with subject 'Welcome' and body 'Hello!'."

"List all active sender domains in my account."

"Show recent opened events for domain ID '98765'."

Troubleshooting MailerSend MCP Server with AutoGen

Common issues when connecting MailerSend to AutoGen through the Vinkius, and how to resolve them.

McpWorkbench not found

Install: pip install "autogen-ext[mcp]"

MailerSend + AutoGen FAQ

Common questions about integrating MailerSend MCP Server with AutoGen.

How does AutoGen connect to MCP servers?

Create an MCP tool adapter and assign it to one or more agents in the group chat. AutoGen agents can then call MailerSend tools during their conversation turns.

Can different agents have different MCP tool access?

Yes. AutoGen's role-based architecture lets you assign specific MCP tools to specific agents, so a querying agent has different capabilities than a reviewing agent.