Agent Mail
AgentMail provides AI agents with their own email inboxes, enabling them to send, receive, and act upon emails for communication with services, people, and other agents.
Verdict
Common use cases
- Route support emails to the right teammate
- Draft replies to common customer questions
- Monitor inbox for urgent keywords or senders
- Send follow-up emails after form submissions
- Archive or summarize daily email volume
Integration
- Vendor
- Agent Mail
- Category
- other
- Auth
- API_KEY
- Tools
- 3
- Composio slug
agent_mail
Tools
- Get Message
Get a specific message from an agentmail inbox
- List Messages
List messages from an agentmail inbox
- Send Email
Send an email using agentmail api
Setup
Setup guide
- 11. In Switchy, navigate to Settings > Integrations and select Agent Mail from the MCP directory. 2. You'll be prompted to enter your Agent Mail API key, which you can generate from your Agent Mail dashboard under API Settings. 3. Paste the key into Switchy and click Connect. 4. Switchy will verify the key by attempting to list messages from your default inbox. 5. Once connected, open any Space and type '@Agent Mail list the last 10 messages' to confirm the integration works. 6. If you see a list of recent emails, you're ready to use all three tools: listing messages, retrieving specific emails by ID, and sending new emails. 7. To send a test email, try '@Agent Mail send an email to test@example.com with subject Test and body This is a test message'.
What teammates see: by default, memories from Agent Mail are scoped to the Space (PROJECT visibility) - you can mark any memory PRIVATE or share it ORG-wide.
Works well with
Top models
Compatibility data appears once enough Spaces have used this MCP together with a given model.
How Switchy teams use it
Starter prompts
Triage Unread Messages
@Agent Mail list the last 20 messages from my inbox, then identify any that mention 'urgent', 'refund', or 'bug' and summarize those first.Open in a Space →
Draft a Reply
@Agent Mail get message ID 12345, read the content, and draft a polite reply addressing the customer's question about billing.Open in a Space →
Send Weekly Update
@Agent Mail send an email to team@example.com with subject 'Weekly Sync' and a brief summary of this week's completed tasks from our Space.Open in a Space →
Check for VIP Senders
@Agent Mail list messages from the last 48 hours and highlight any from addresses ending in @partnerdomain.com or @vip.com.Open in a Space →
Summarize Inbox Activity
@Agent Mail list the last 50 messages, then group them by subject theme and tell me which topics appeared most often.Open in a Space →
Example outputs
Illustrative - representative of the model's voice and quality, not literal recordings.
@Agent Mail list the last 10 messages in my inbox and show me which ones are unread
Found 10 messages in your Agent Mail inbox. 3 are unread: (1) "Q4 Budget Review" from finance@acme.com received 2 hours ago, (2) "API Integration Questions" from dev@partner.co received yesterday, (3) "Weekly Sync Reminder" from calendar@internal.com received 3 days ago. The 7 read messages include routine notifications and completed threads from the past week. All messages are accessible via their message IDs if you need full content.
This example shows the MCP's ability to filter and surface inbox state. Requires valid API key with read permissions. The MCP returns message metadata (sender, subject, timestamp, read status) but you'll need a separate Get Message call to retrieve full body content for any specific email.
@Agent Mail send an email to team@company.com with subject "Sprint Planning Tomorrow" and body reminding everyone about the 10am meeting
Email sent successfully via Agent Mail. Recipient: team@company.com. Subject: "Sprint Planning Tomorrow". Body: "Hi team, quick reminder that our sprint planning session is tomorrow at 10am. Please review the backlog items in advance so we can hit the ground running. See you there!" Message ID: msg_abc123xyz. The email was delivered from your configured Agent Mail sending address.
Demonstrates the MCP's outbound capability. Requires API key with send permissions. Agent Mail acts as the sending service, so recipients will see your configured Agent Mail address as the sender. Rate limits apply based on your Agent Mail plan tier—check your account if you're sending bulk notifications.
@Agent Mail get the full content of message msg_abc123xyz and summarize the action items mentioned in it
Retrieved message msg_abc123xyz: "Re: Client Onboarding Process" from ops@company.com, received last Tuesday. Full body discusses three action items: (1) Update the onboarding checklist template by end of week, (2) Schedule kickoff call with new client for next Monday, (3) Assign a dedicated account manager from the support team. The sender emphasizes urgency on item 1 due to an upcoming client start date.
This example pairs the MCP's message retrieval with AI reasoning to extract structured information from email content. Useful for turning inbox threads into actionable task lists. The MCP fetches raw message data; the AI handles interpretation. Works best when message IDs are known from a prior List Messages call.
Use-case deep-dives
When Agent Mail works for lightweight customer support routing
A 3-person SaaS startup fields 20-40 support emails a day and wants an AI agent to read, tag, and route them before the team opens their inbox. Agent Mail's three-tool scope (list, get, send) covers this cleanly: the agent pulls the inbox, scans for keywords or sentiment, then replies with a canned acknowledgment or forwards to the right person. The API key auth keeps setup under 5 minutes. The threshold: if you need threading, attachments, or integration with a ticketing system, Agent Mail's minimal toolset won't cut it—you'll want a fuller email MCP or a dedicated support platform. For pre-triage on a single shared inbox, this is the fastest path to an AI first-responder.
Agent Mail handles basic accounts-receivable reminders at small scale
A 6-person agency bills 15 clients monthly and wants an AI agent to check an invoicing inbox, identify overdue replies, and send polite nudges. Agent Mail's send-email tool lets the agent compose follow-ups in natural language; list-messages and get-message let it scan for payment confirmations or client questions. This works if your follow-up logic is simple ("no reply in 7 days → send reminder") and you're okay with the agent having full send access via API key. The trade-off: no read receipts, no calendar integration, no multi-inbox support. If you're managing 50+ invoices or need audit trails beyond email logs, you'll outgrow this fast. For a dozen clients and straightforward reminders, Agent Mail keeps it lean.
When Agent Mail is overkill for internal team updates
A 10-person product team wants an AI agent to email meeting notes to attendees after each standup. Agent Mail can technically do this—send-email with a formatted body—but it's the wrong tool. You don't need inbox-reading or message-listing for one-way broadcasts, and giving an agent API key access to a shared email account introduces risk (accidental sends, no per-user attribution). A Slack MCP or a Google Docs MCP that posts notes directly to a channel or shared folder is safer and more auditable. Use Agent Mail when the AI needs to *react* to incoming mail, not just blast updates. If your workflow is "generate content, then distribute," skip the email layer and go straight to your team's collaboration tool.
Frequently asked
What does the Agent Mail MCP do in Switchy?
It lets your AI agents read and send emails through Agent Mail inboxes without leaving the workspace. You can list messages, retrieve specific emails by ID, and send outbound mail programmatically. Useful for teams that want AI to handle support triage, lead follow-ups, or automated notifications without touching your main corporate email system.
Do I need an Agent Mail account to use this MCP?
Yes. You'll need an active Agent Mail account and an API key from their dashboard. Paste that key into Switchy's connection settings. No OAuth dance here—just straight API key authentication. If your team doesn't have Agent Mail yet, sign up at their site first.
Can this MCP send emails from my company domain?
Only if Agent Mail itself supports custom domain sending and you've configured it there. The MCP uses Agent Mail's API, so it inherits whatever domain and sender settings you've set up in your Agent Mail account. Check their docs on domain verification if you need branded sender addresses.
How is this different from using Gmail or Outlook MCPs?
Agent Mail is purpose-built for programmatic email—think transactional messages, webhook replies, or AI-generated outreach. Gmail and Outlook MCPs connect to your personal or work inbox, which is riskier for automation. Use Agent Mail when you want a dedicated pipeline that won't accidentally reply to your boss.
Who on the team should connect this MCP?
Whoever owns your Agent Mail account and has access to the API key. Usually that's someone on ops or engineering. Once connected in Switchy, any team member with workspace access can invoke the tools—but only the connector can rotate or revoke the key.