Enginemailer MCP server

Connect Enginemailer to Claude, ChatGPT, Cursor, Claude Code, Codex, Gemini, GitHub Copilot and any other MCP client, for your whole team. Metorial adds security, governance, and tracing, and gives everyone one Magic MCP URL to connect.

What you can do with the Enginemailer MCP server

Ask your agent in plain language. Each of these maps to a real tool on the server.

  • Use the delete campaign tool in Enginemailer
  • Use the tag subscriber tool in Enginemailer
  • Use the send or schedule campaign tool in Enginemailer
  • Use the activate subscriber tool in Enginemailer
  • Use the list custom fields tool in Enginemailer
  • Use the list subcategories tool in Enginemailer

Supported Tools

delete_campaign

Delete Campaign

Permanently delete a campaign from Enginemailer. This removes the campaign and cannot be undone.

tag_subscriber

Tag Subscriber

Add one or more subcategory tags to a subscriber for segmentation. Tags allow you to group subscribers for targeted campaigns. Use subcategory names or IDs as they appear in your Enginemailer account.

send_campaign

Send or Schedule Campaign

Send a campaign immediately, schedule it for a specific time, or pause a running campaign. Optionally assign a recipient list before sending.

activate_subscriber

Activate Subscriber

Reactivate a previously deactivated (unsubscribed) subscriber, allowing them to receive email communications again.

list_custom_fields

List Custom Fields

Retrieve all custom fields configured in your Enginemailer account. Custom fields are used to store additional subscriber data for personalization and segmentation.

list_subcategories

List Subcategories

Retrieve all subcategories (tags/segments) available in your Enginemailer account. Subcategories are used to segment subscribers for targeted campaigns and tagging.

untag_subscriber

Untag Subscriber

Remove one or more subcategory tags from a subscriber. The subscriber will no longer be included in campaigns targeting these subcategories.

delete_subscriber

Delete Subscriber

Permanently delete a subscriber from Enginemailer. This action cannot be undone. Use **Deactivate Subscriber** instead if you want to preserve the subscriber record.

list_campaigns

List Campaigns

Retrieve undelivered campaigns with their details. Optional page and pageSize slice the complete provider list locally.

add_update_subscriber

Add or Update Subscriber

Add a new subscriber or update an existing one in Enginemailer. Provide the subscriber's email along with optional subcategories, custom fields, and source type. If the subscriber already exists, their data will be updated according to the specified update type.

manage_campaign

Manage Campaign

Create or update an email campaign. When creating, provide campaign name, sender details, subject, and HTML content. When updating, specify the campaign ID along with the fields to modify. Campaign API is restricted to paid plan users only.

find_subscriber

Find Subscriber

Look up a subscriber by their email address and retrieve their profile data including custom fields, subcategories, and status.

deactivate_subscriber

Deactivate Subscriber

Unsubscribe (deactivate) a subscriber, preventing further email communications. The subscriber record is preserved but marked as inactive. Use **Activate Subscriber** to reactivate later if needed.

send_transactional_email

Send Transactional Email

Send a transactional email to a recipient. Supports HTML content or pre-built templates, personalization via substitution tags, CC/BCC recipients, and base64-encoded file attachments. Ideal for sending notifications, receipts, reminders, and other automated emails.

get_campaign_delivery_status

Get Campaign Delivery Status

Retrieve delivery and engagement statistics for a delivered campaign, including sent, delivered, bounced, opened, clicked, unsubscribed, and spam complaint counts.

Connect Enginemailer to your AI client

Every client uses the same Magic MCP URL, and so does any other MCP client. Add it once and sign in with SSO.

  1. Enable Enginemailer in Metorial. In your Metorial portal, enable the Enginemailer MCP server and sign in with the account that owns the data. Access stays governed by your team policies.
  2. Add a custom connector. Open Customize, then Connectors. Select Add, then Custom, then Web.
  3. Paste your Metorial MCP URL. Name it Metorial, paste your Magic MCP URL (<your-magic-mcp-url>) and continue.
  4. Sign in. Select Add and sign in to load Enginemailer tools.

Run Enginemailer through the Metorial gateway

One governed layer for every app your agents reach, not a separate connector per tool.

  • Give Enginemailer and every other app to your whole team through one MCP gateway, behind your SSO.
  • Scope which teams and agents can use Enginemailer tools with role-based access control, and trace every call.
  • Prefer to run it yourself? Metorial is open source and self-hostable.

More integrations teams use with Enginemailer

Slack

Slack: connect with bot OAuth or user OAuth to work with messages, conversations, search, files, Canvases, Lists, profiles, reactions, reminders, and workspace productivity settings.

Salesforce

Manage CRM data including Accounts, Contacts, Leads, Opportunities, Cases, and custom objects. Create, read, update, and delete records. Query data using SOQL and search across objects using SOSL. Perform bulk data operations for large-scale imports, exports, and migrations. Execute composite requests to batch multiple operations in a single API call. Access analytics, reports, and dashboards. Manage files and attachments associated with records. Interact with Chatter feeds, posts, and groups for social collaboration. Manage org metadata including custom objects, fields, layouts, and workflows. Query data using GraphQL for precise data retrieval across related objects.

Apolloio

Search and prospect B2B contacts and companies from a database of over 275 million people and 70 million organizations. Enrich people and company data with emails, phone numbers, and firmographic details. Create and manage contacts, accounts, deals, and tasks. Add contacts to email sequences and manage sequence statuses. Log and search call records. Perform bulk operations for contact creation, account creation, task creation, and data enrichment.

Sharepoint

Manage SharePoint sites, document libraries, lists, and files. Create, read, update, and delete lists and list items with custom columns. Resolve site users to numeric Person/Group LookupId values. Upload, download, move, copy, and version files in document libraries. Search across sites, files, folders, lists, and list items using Microsoft Search. Manage permissions at site, list, and item levels with granular access control. Define and manage content types and site columns. Retrieve site properties and search for sites across Microsoft 365.

Microsoft Outlook

Send, read, reply to, forward, and manage email messages in user mailboxes. Organize messages into folders, apply categories, flags, and importance levels. Manage file and item attachments. Create, update, delete, and respond to calendar events and meetings. Find available meeting times, manage attendees, handle recurrence, and work with shared or delegated calendars. Create, read, update, and delete contacts, organize them into contact folders, and manage contact photos. Manage tasks and task lists via Microsoft To Do, including due dates, reminders, recurrence, and checklist items. Subscribe to webhook notifications for changes to messages, calendar events, and contacts. Support for Focused Inbox, @-mentions, mail tips, send-on-behalf, and send-as capabilities.

Hubspot

Create, read, update, and delete CRM objects including contacts, companies, deals, tickets, and custom objects. Manage associations between CRM records. Track engagements such as calls, emails, meetings, notes, and tasks. Send transactional and marketing emails, manage campaigns, and handle subscription preferences. Build and manage marketing workflows, sequences, and automation actions. Manage CMS content including blog posts, landing pages, and HubDB tables. Handle commerce data including products, orders, invoices, quotes, and payments. Create and manage contact lists for segmentation. Configure deal, ticket, and order pipelines with custom stages. Search and filter CRM records. Bulk import and export CRM data. Manage users, teams, and account settings.

Technical notes for Enginemailer

Manage email marketing campaigns, subscribers, and transactional emails. Add, update, deactivate, or delete subscribers with custom fields and tags. Create and send email campaigns with HTML content. Send transactional emails with personalization, attachments, and templates. Set up autoresponders and automated email sequences. Track campaign performance including open rates, click-through rates, bounces, and unsubscribes.

Frequently asked questions

Common questions about connecting Enginemailer to AI agents with Metorial.

  1. How many tools does the Enginemailer MCP server have?
    The Enginemailer MCP server exposes 15 tools, including Delete Campaign, Tag Subscriber, Send or Schedule Campaign. Each one is governed and traced through Metorial.
  2. Enginemailer exposes tools your agents call on demand; it does not publish event triggers yet. Everything still runs through one governed MCP URL.
  3. Any MCP client, including VS Code, Windsurf, Zed, OpenCode and Grok. Each one reaches the Enginemailer MCP server through the same Metorial URL.
  4. Use role-based access control to decide which teams, users, and agents can use Enginemailer and which of its tools they can call.
  5. Yes. Metorial is open source, so you can run the Enginemailer MCP server yourself or use the hosted gateway.

Connect Enginemailer to production AI agents

See how Metorial gives your team governed access to Enginemailer, with tracing and security controls built in.