> StackAI deploys enterprise AI agents that use Gmail and Outlook. Add Revdoku mailboxes with a custom MCP server.

# StackAI Agents: Email and MCP Connections

[StackAI](https://www.stackai.com/) calls itself "The Enterprise AI Agent Factory". Its own description:

> StackAI empowers enterprises to deploy AI Agents at scale.

## At a glance

| | StackAI |
|---|---|
| **Built for** | Enterprise IT teams |
| **Email** | Gmail and Outlook integrations ([Gmail](https://docs.stackai.com/integrations/catalog/gmail)); its Send Email tool uses StackAI's own mail service |
| **Custom connections** | Custom MCP servers with a bearer or basic key, or OAuth with dynamic registration ([docs](https://docs.stackai.com/integrations/catalog/custom-mcp)); an HTTP request tool; webhooks |
| **Free to try** | Free plan |

## Add more mailboxes with Revdoku

StackAI works in the mailbox you connect. To give it more email addresses, such as one per client, project or app, create mailboxes in Revdoku and add [Revdoku](/mcp/) as a custom MCP server at `https://mcp.revdoku.com`. StackAI can then read email and attachments in those mailboxes and reply to senders, and your other AI agents can use the same mailboxes.

[More AI agent platforms and how they handle email](/platforms/)

Email address
for your AI agent

youragent@yourdomain.com address
to receive emails, send replies
and store attachments and files.

Built-in virus, malware and spam filter

Built-in AI screening against prompt injection

Built-in secure file storage

Read, send, manage via API, MCP, CLI

Create mailbox
From $4.99/mo · 30-day money-back guarantee

or Try free : 1 mailbox, replies only to you, no card

## Frequently Asked Questions

### What is StackAI?

StackAI is an enterprise platform for building, deploying and governing AI agents.

### Which email does StackAI use?

StackAI agents connect to Gmail and Outlook. Its built-in Send Email tool sends through StackAI's own mail service.

### Can StackAI use a Revdoku mailbox?

Yes. Add Revdoku as a custom MCP server at https://mcp.revdoku.com with OAuth and dynamic registration.

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