# Your Zoho Mail. In your agent.

Source: https://corespeed.io/integrations/zoho-mail

Connect Zoho Mail to Claude Code, Codex, Cursor or any MCP agent through CoreSpeed. Your agent searches your mailbox with Zoho's own search syntax, reads a message, and files it with folders, labels and flags. It can reply or send from your own addresses, using your Zoho account, and each send is a separate call approvals can hold.

## Set up an agent

Give your agent this line: `set up https://corespeed.io/SKILL.md (read it raw, e.g. with curl)`

It fetches the skill at https://corespeed.io/SKILL.md, adds the CoreSpeed MCP server, signs you in (or up), and keeps the skill for next time. Connect Zoho Mail after setup. Access follows the connected account and its permissions. Create an account: https://app.corespeed.io/sign-up

## Find the thread. Know what to answer

Have your agent search the mailbox, read what matters, and flag what still needs a reply. You decide what goes out.

You ask your agent: "Find this month's emails about the Northwind renewal. Summarize where it stands and flag the ones that need a reply. Do not send anything."

It calls CoreSpeed:

- `zoho-mail__search_emails`: ok, 433 ms
- `zoho-mail__get_email_content`: ok, 391 ms
- `zoho-mail__flag_emails`: ok, 268 ms

It reads from: Zoho Mail.

### Mailbox brief: Northwind wants new terms by Friday.

They plan to renew. The seat count for next year is still open.

**Needs a reply**

- Stewart asked for the updated renewal terms by Friday. Flagged follow-up.

**Do not assume**

- The seat count has not been confirmed.

_Illustrative mailbox · Fictional data · Nothing sent_

All connectors: https://corespeed.io/docs/connectors

## Find it, file it, answer it

Requests you can make once Zoho Mail is connected. The data is fictional.

### Catch up on a thread

Renewal · Northwind · Thread summary

- Latest request: Updated terms by Friday
- Still open: Seat count for next year
- From your mailbox

### File what came in

Invoices, put away · Folders and labels

- Moved: 4 invoices to Finance
- Labeled: Paid
- A change to your mailbox

### Hold a reply

A reply, waiting for you · Example policy on

- Policy match: Ask before writing outside the company
- Outcome: Waiting for you to approve
- Ask

## Keep your agent. Bring your work

One CoreSpeed account, across compatible agents.

1. **Set up CoreSpeed**: Give your agent the setup line. It adds CoreSpeed and signs you in.
2. **Connect Zoho Mail**: Authorize the account and the content you need.
3. **Start with one task**: Ask for a summary, a brief, or a draft. Review the answer.

Setup guides: Claude Code https://corespeed.io/docs/mcp#claude-code · Codex https://corespeed.io/docs/mcp#codex · Cursor https://corespeed.io/docs/mcp#cursor

## Questions

### Can it download attachments?

No. It lists an email's attachments by name and size, but it does not download them.

### Does it work with more than one mailbox?

Yes. It lists the mailboxes your Zoho account can reach. Each call uses the mailbox you connected unless it names another.

### Will it send email on its own?

Only if you let it. Sending and replying are separate tool calls, and approvals can hold them for a person. How approvals work: https://corespeed.io/solutions/agent-approvals

### Do I have to switch agents?

No. CoreSpeed adds tools to the agent you already use: Claude Code, Codex, Cursor, or another MCP client. Each one signs in once.

### Can my agent access every account in our organization?

No. Access follows your CoreSpeed identity, each connection's visibility, and the app's own permissions. Personal connections stay private.

### Does this work without connecting an account?

No. Connect the app's account first; your CoreSpeed workspace shows what each app needs. The examples on this page use fictional data. All connectors: https://corespeed.io/docs/connectors

Every tool and price: https://corespeed.io/catalog/zoho-mail

## Related pages

- [Approval gates for AI agent tool actions](https://corespeed.io/solutions/agent-approvals): Set approval policies for writes through CoreSpeed. Review held tool actions while your team keeps using its preferred agents.
- [Agent Mail](https://corespeed.io/email): An inbox for every agent. Its own address in one call: it signs up, catches the code and answers its mail. You approve first contact with anyone new.
- [Gmail for Claude Code, Codex, and Cursor](https://corespeed.io/integrations/gmail): Catch up on email threads and prepare thoughtful replies, right inside the agent you already use.
- [Webex for Claude Code, Codex, and Cursor](https://corespeed.io/integrations/webex): Catch up on Webex spaces, find the right person, and set up the follow-up meeting from the agent you already use.

## Sources

- Connectors: https://corespeed.io/docs/connectors
- Zoho Mail API: https://www.zoho.com/mail/help/api/
- Zoho Mail API: send an email: https://www.zoho.com/mail/help/api/post-send-an-email.html

Reviewed 2026-11-10.

## Links

- Product overview: https://corespeed.io/ (Markdown: https://corespeed.io/index.md)
- All integrations: https://corespeed.io/integrations (Markdown: https://corespeed.io/integrations.md)
- Documentation: https://corespeed.io/docs
- Pricing: https://corespeed.io/pricing (Markdown: https://corespeed.io/pricing.md)