Productivity integration · Beta
Evaluate the Fastmail MCP server for your MSP stack.
The Stackyapper Fastmail connection is available for evaluation. Beta apps may change and should begin with a small set of read-only tools.
What is the Stackyapper Fastmail MCP integration?
The Stackyapper Fastmail integration lets compatible AI clients use approved Fastmail tools without receiving the provider credential.
What can the Fastmail integration do?
Fastmail email and contacts through JMAP.
Available tools depend on the provider account, workspace settings, and the signed-in user’s permissions.
Who is the Fastmail MCP integration for?
It is for MSP and customer teams that need approved Fastmail context available to an AI assistant while keeping provider authorization inside the selected Stackyapper workspace.
What is the current support status?
| Status | Beta |
|---|---|
| App review | In review |
| What that means | Available for evaluation, may change, and should begin with read-only tools. |
| Catalog category | Productivity |
| Catalog audience | customer and msp |
| Credential handling | Each authorized user supplies their own Fastmail provider credential for the selected workspace. |
| Customer access | Customer access available when an administrator enables it |
Start in a test workspace with one read-only tool and a request for no more than five records.
What can an MSP use it for?
- Review approved Fastmail context during a productivity workflow.
- Ask an authorized AI client to summarize permitted Fastmail results before a human decision.
- Use the Fastmail connection alongside another permitted business system when the workflow needs that information.
Exact tools depend on provider authorization, credential ownership, workspace settings, and the signed-in user’s permissions.
What should I expect?
| Provider scope | Fastmail email and contacts through JMAP. |
|---|---|
| Available tools | Compatible clients see only the tools available to the signed-in user in the selected workspace. |
| Write actions | If a write tool is available, Stackyapper applies its permissions and confirmation requirements before it runs. |
| API coverage | This page lists the capabilities Stackyapper currently supports, not every endpoint in the provider API. |
How is Fastmail access controlled?
- An administrator configures Fastmail for the intended Stackyapper workspace, and each authorized user connects their own provider identity or credential.
- The administrator grants available tools to specific workspaces, groups, or people.
- Stackyapper resolves the connection within the current credential and tenant scope.
- Stackyapper checks permissions and safety controls again before every request.
- Actions that require confirmation do not execute until the exact request is confirmed.
Does Fastmail send its API credential to Claude or ChatGPT?
No. Stackyapper keeps the encrypted provider credential secure and does not send it to the AI client.
How do I evaluate the Fastmail beta?
- Create or select a non-production Stackyapper workspace.
- Find Fastmail in the app catalog and request beta access if it is not enabled.
- Use the provider authorization described above with the narrowest practical permissions.
- Grant only the read-only tool needed for the evaluation.
- Request no more than five records, confirm the result in Audit, and expand access only when the test succeeds.
Support boundaries
- Stackyapper does not claim that every endpoint in the Fastmail API is exposed.
- Provider plan, account configuration, API scopes, and upstream availability can limit results.
- Administrators are responsible for correct provider permissions and user grants.
- Support status and available tools can change as provider capabilities evolve.
Fastmail MCP questions
Is there a Fastmail MCP server?
Stackyapper has a beta Fastmail MCP connection available for evaluation. Beta apps may change and should begin with a small set of read-only tools.
Can I connect Fastmail to Claude or ChatGPT?
Stackyapper has a beta Fastmail connection for compatible MCP clients. It is available for evaluation and may change. Exact access depends on provider authorization and Stackyapper workspace permissions.
Does Stackyapper expose every Fastmail API endpoint?
No. This page lists the Fastmail capabilities Stackyapper currently supports.
Does Fastmail send its credential to the AI client?
No. Stackyapper keeps the encrypted Fastmail credential secure and does not send it to the AI client.
Related Stackyapper resources
- How the Stackyapper MCP server works for MSPs
- MCP security, credential, and access-control model
- Connect ChatGPT, Claude, Claude Code, or Codex to Stackyapper
- Complete Stackyapper app catalog
- Asana MCP access (beta)
- CIPP MCP access (available)
- CourtListener MCP access (beta)
Stackyapper is an independent product. Provider availability and API capabilities can change.