# Twilio SendGrid Mail Settings API API

> Twilio SendGrid Mail Settings API API on Apizie: 13 endpoints (Retrieve all mail settings, Retrieve address whitelist mail settings, Update address whitelist mail settings, Retrieve Bounce Purge Mail Settings, …) returned as clean JSON through one API key. Send your own provider key in the x-upstream-key header. Call it over REST at https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/{endpoint} or from Claude, ChatGPT and Cursor through the Apizie MCP server. Free plan: 1,000 requests a month.

- Project key: `communication:sendgrid-mail-settings-v3`
- Category: Communication
- Status: byok
- Source: https://www.twilio.com/docs/sendgrid/api-reference
- Page: https://apizie.tech/api/communication/sendgrid-mail-settings-v3
- OpenAPI: https://apizie.tech/api/communication/sendgrid-mail-settings-v3/openapi.json

The Twilio SendGrid Mail Settings API allows you to retrieve and configure the various Mail Settings available. Mail Settings instruct SendGrid to apply specific settings to every email that you send over [SendGrid’s…

## Endpoints

### Retrieve all mail settings
`GET https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/list-mail-setting` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| limit | integer | no | `limit` sets the page size, i.e. maximum number of items from the list to be returned for a single API request. If omitted, the default… |
| offset | integer | no | The number of items in the list to skip over before starting to retrieve the items for the requested page. The default `offset` of `0`… |
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |

### Retrieve address whitelist mail settings
`GET https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/list-address-whitelist` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |

### Update address whitelist mail settings
`POST https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/update-address-whitelist` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |
| body | object | no | JSON request body |

### Retrieve Bounce Purge Mail Settings
`GET https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/list-bounce-purge` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |

### Update Bounce Purge Mail Settings
`POST https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/update-bounce-purge` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |
| body | object | no | JSON request body |

### Retrieve footer mail settings
`GET https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/list-footer` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |

### Update footer mail settings
`POST https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/update-footer` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |
| body | object | no | JSON request body |

### Retrieve forward bounce mail settings
`GET https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/list-forward-bounce` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |

### Update forward bounce mail settings
`POST https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/update-forward-bounce` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |
| body | object | no | JSON request body |

### Retrieve forward spam mail settings
`GET https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/list-forward-spam` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |

### Update forward spam mail settings
`POST https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/update-forward-spam` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |
| body | object | no | JSON request body |

### Retrieve legacy template mail settings
`GET https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/list-template` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |

### Update template mail settings
`POST https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/update-template` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| on-behalf-of | string | no | The `on-behalf-of` header allows you to make API calls from a parent account on behalf of the parent's Subusers or customer accounts. You… |
| body | object | no | JSON request body |

## Example
```
curl "https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/list-mail-setting" \
  -H "x-api-key: $APIZIE_KEY" \
  -H "x-upstream-key: $PROVIDER_KEY"
```

## FAQ

### How do I call the Twilio SendGrid Mail Settings API API?
Create a free Apizie key, then send GET https://apizie.tech/v1/communication:sendgrid-mail-settings-v3/list-mail-setting with the header x-api-key. Every endpoint returns { project, data, timestamp }.

### Is the Twilio SendGrid Mail Settings API API free on Apizie?
Yes. The Free plan includes 1,000 requests a month at 100 requests a minute, no credit card. Twilio SendGrid Mail Settings API itself also needs your own key from sendgrid.com.

### Can AI agents use the Twilio SendGrid Mail Settings API API?
Yes. Add the Apizie MCP server (https://apizie.tech/mcp) to Claude, ChatGPT, Cursor or VS Code, then ask in plain language. The agent calls run_scraper with project key communication:sendgrid-mail-settings-v3.

### What is the status of the Twilio SendGrid Mail Settings API API?
Needs your own provider key (bring your own key)