> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tuco.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Email Bridge

> Send iMessages by email — no app or API needed. Built into Tuco AI iMessage automation — works with HubSpot, Salesforce, GoHighLevel, and direct API customers.

## How Email Bridge Works

Send iMessages by emailing `+phone@send.tuco.ai` from your email client. No app, no API, no setup beyond having a Tuco account.

## Sending a Message

1. Compose an email in Gmail, Outlook, or any email client
2. Set the **To** field to: `+19042956129@send.tuco.ai`
3. Write your message in the email body
4. Hit Send — Tuco sends it as an iMessage and emails you a confirmation

## Email Formats

| Format                        | Description                                       |
| ----------------------------- | ------------------------------------------------- |
| `+19042956129@send.tuco.ai`   | Uses your first available active line             |
| `+19042956129-1@send.tuco.ai` | Uses a specific line number (shown on Lines page) |

## Requirements

* Your email must be registered in Tuco (or added to the sender allowlist)
* Your workspace must have at least one active iMessage line
* Phone number must be in E.164 format (+country code + number)

## Sender Allowlist

Allow additional email addresses to send via the bridge without a Tuco account:

1. Go to **Integrations → Email Bridge**
2. Add colleague emails to the allowlist
3. They can now send iMessages via email

## Error Handling

If something goes wrong, you receive a bounce email:

| Error                | Fix                                        |
| -------------------- | ------------------------------------------ |
| Invalid phone number | Check format: +19042956129                 |
| Not authorized       | Your email isn't registered or allowlisted |
| No active lines      | Set up a line at Lines → Purchase          |
| Send failed          | Recipient may not have iMessage            |