# Retrieve all blocks

## API Overview

[Blocks](/docs/sendgrid/glossary/blocks/) happen when your email is rejected because of an issue with the message itself rather than an issue with the recipient's address.

There are several causes for blocked emails. For example, your mail server IP address may be blocked by an ISP, or the receiving server may flag the message content using a filter. Twilio SendGrid will not suppress future messages to blocked addresses by default.

For more information, please see our [Blocks documentation](/docs/sendgrid/ui/sending-email/blocks/).

You can also see your Blocks in the [Suppressions settings menu of the Twilio SendGrid App](https://app.sendgrid.com/suppressions/blocks).

## Operation overview

```json
{"path":"https://api.sendgrid.com/v3/suppression/blocks","method":"get","servers":[{"url":"https://api.sendgrid.com","description":"for global users and subusers"},{"url":"https://api.eu.sendgrid.com","description":"for EU regional subusers"}]}
```

**This endpoint allows you to retrieve a paginated list of all email addresses that are currently on your blocks list.**

You can use the `limit` query parameter to set the page size. If your list contains more items than the page size permits, you can make multiple requests. Use the `offset` query parameter to control the position in the list from which to start retrieving additional items.

## Operation details

### Authentication

API Key

### Headers

```json
[{"in":"header","name":"Authorization","required":true,"default":"Bearer <<YOUR_API_KEY_HERE>>","schema":{"type":"string"}},{"name":"on-behalf-of","in":"header","description":"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 will use the parent account's API key when using this header. When making a call on behalf of a customer account, the property value should be \"account-id\" followed by the customer account's ID (e.g., `on-behalf-of: account-id <account-id>`). When making a call on behalf of a Subuser, the property value should be the Subuser's username (e.g., `on-behalf-of: <subuser-username>`). It is important to use the Base URL that corresponds to the region of the account or Subuser you specify in the `on-behalf-of` header. See [**On Behalf Of**](/docs/sendgrid/api-reference/how-to-use-the-sendgrid-v3-api/on-behalf-of) for more information.","required":false,"schema":{"type":"string"},"refName":"#/components/parameters/OnBehalfOf","modelName":"__components_parameters_OnBehalfOf"}]
```

### Query string

```json
[{"name":"start_time","in":"query","description":"The start of the time range when a blocked email was created (inclusive). This is a unix timestamp.","schema":{"type":"integer"}},{"name":"end_time","in":"query","description":"The end of the time range when a blocked email was created (inclusive). This is a unix timestamp.","schema":{"type":"integer"}},{"name":"limit","in":"query","required":false,"description":"`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 page size is used. The maximum page size for this endpoint is 500 items per page.","schema":{"type":"integer","minimum":1,"maximum":500},"refName":"#/components/parameters/PaginationCommonLimit","modelName":"__components_parameters_PaginationCommonLimit"},{"name":"offset","in":"query","required":false,"description":"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` represents the beginning of the list, i.e. the start of the first page. To request the second page of the list, set the `offset` to the page size as determined by `limit`. Use multiples of the page size as your `offset` to request further consecutive pages. E.g. assume your page size is set to `10`. An `offset` of `10` requests the second page, an `offset` of `20` requests the third page and so on, provided there are sufficiently many items in your list.","schema":{"type":"integer","minimum":0,"default":0},"refName":"#/components/parameters/PaginationCommonOffset","modelName":"__components_parameters_PaginationCommonOffset"},{"name":"email","in":"query","description":"Specifies which records to return based on the records' associated email addresses. For example, `sales` returns records with email addresses that start with 'sales', such as `salesdepartment@example.com` or `sales@example.com`.  You can also use `%25` as a wildcard. For example, `%25market` returns records containing email addresses with the string 'market' anywhere in the email address, and `%25market%25tree` returns records containing email addresses with the string 'market' followed by the string 'tree'. Any reserved characters should be [percent-encoded](https://en.wikipedia.org/wiki/Percent-encoding#Reserved_characters), e.g., the `@` symbol should be encoded as `%40`.","required":false,"schema":{"type":"string"},"refName":"#/components/parameters/EmailPartialMatch","modelName":"__components_parameters_EmailPartialMatch"}]
```

### Responses

```json
[{"responseCode":"200","schema":{"description":"","content":{"application/json":{"schema":{"title":"Blocks Response","type":"array","example":[{"created":1443651154,"email":"example@example.com","reason":"error dialing remote address: dial tcp 10.57.152.165:25: no route to host","status":"4.0.0"}],"refName":"BlocksResponse","modelName":"BlocksResponse","items":{"type":"object","required":["created","email","reason","status"],"properties":{"created":{"type":"integer","description":"A Unix timestamp indicating when the email address was added to the blocks list."},"email":{"type":"string","description":"The email address that was added to the block list.","format":"email"},"reason":{"type":"string","description":"An explanation for the reason of the block."},"status":{"type":"string","description":"The status of the block."}}}},"examples":{"response":{"value":[{"created":1443651154,"email":"example@example.com","reason":"error dialing remote address: dial tcp 10.57.152.165:25: no route to host","status":"4.0.0"},{"created":1443651155,"email":"example1@example.com","reason":"unable to resolve MX record for example.com: servfail","status":"4.0.0"}]}}}}}}]
```

## Retrieving paginated results

To perform a request for the first page of the paginated list of all blocks using the default page size, you can omit the `limit` and `offset` query parameters:

Retrieve first page from list of all blocks

```js
const client = require("@sendgrid/client");
client.setApiKey(process.env.SENDGRID_API_KEY);

const request = {
  url: `/v3/suppression/blocks`,
  method: "GET",
};

client
  .request(request)
  .then(([response, body]) => {
    console.log(response.statusCode);
    console.log(response.body);
  })
  .catch((error) => {
    console.error(error);
  });
```

```python
import os
from sendgrid import SendGridAPIClient


sg = SendGridAPIClient(os.environ.get("SENDGRID_API_KEY"))


response = sg.client.suppression.blocks.get()

print(response.status_code)
print(response.body)
print(response.headers)
```

```csharp
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using SendGrid;

public class Program {
    public static async Task Main() {
        string apiKey = Environment.GetEnvironmentVariable("SENDGRID_API_KEY");
        var client = new SendGridClient(apiKey);

        var response = await client.RequestAsync(
            method: SendGridClient.Method.GET, urlPath: "suppression/blocks");

        Console.WriteLine(response.StatusCode);
        Console.WriteLine(response.Body.ReadAsStringAsync().Result);
        Console.WriteLine(response.Headers.ToString());
    }
}
```

```java
import com.sendgrid.*;
import java.io.IOException;

public class Example {
    public static void main(String[] args) throws IOException {
        try {
            SendGrid sg = new SendGrid(System.getenv("SENDGRID_API_KEY"));
            Request request = new Request();
            request.setMethod(Method.GET);
            request.setEndpoint("/suppression/blocks");
            Response response = sg.api(request);
            System.out.println(response.getStatusCode());
            System.out.println(response.getBody());
            System.out.println(response.getHeaders());
        } catch (IOException ex) {
            throw ex;
        }
    }
}
```

```go
package main

import (
	"fmt"
	"github.com/sendgrid/sendgrid-go"
	"os"
)

func main() {
	apiKey := os.Getenv("SENDGRID_API_KEY")
	host := "https://api.sendgrid.com"
	request := sendgrid.GetRequest(apiKey, "/v3/suppression/blocks", host)
	request.Method = "GET"
	response, err := sendgrid.API(request)
	if err != nil {
		fmt.Println(err.Error())
		os.Exit(1)
	} else {
		fmt.Println(response.StatusCode)
		fmt.Println(response.Body)
		fmt.Println(response.Headers)
	}
}
```

```php
<?php
// Uncomment the next line if you're using a dependency loader (such as Composer) (recommended)
// require 'vendor/autoload.php';

// Uncomment next line if you're not using a dependency loader (such as Composer)
// require_once '<PATH TO>/sendgrid-php.php';

$apiKey = getenv("SENDGRID_API_KEY");
$sg = new \SendGrid($apiKey);

try {
    $response = $sg->client
        ->suppression()
        ->blocks()
        ->get();
    print $response->statusCode() . "\n";
    print_r($response->headers());
    print $response->body() . "\n";
} catch (Exception $ex) {
    echo "Caught exception: " . $ex->getMessage();
}
```

```ruby
require 'sendgrid-ruby'
include SendGrid

sg = SendGrid::API.new(api_key: ENV['SENDGRID_API_KEY'])

response = sg.client.suppression.blocks.get()
puts response.status_code
puts response.headers
puts response.body
```

```bash
curl -X GET "https://api.sendgrid.com/v3/suppression/blocks" \
--header "Authorization: Bearer $SENDGRID_API_KEY"
```

If you want to specify a page size of your choice, you can use the `limit` query parameter. Assume you want a page size of no more than 5 items per request, to retrieve the first page you can use the `limit` parameter without specifying an `offset`:

Retrieve first page from list of all blocks with a specified page size

```js
const client = require("@sendgrid/client");
client.setApiKey(process.env.SENDGRID_API_KEY);

const queryParams = { limit: 5 };

const request = {
  url: `/v3/suppression/blocks`,
  method: "GET",
  qs: queryParams,
};

client
  .request(request)
  .then(([response, body]) => {
    console.log(response.statusCode);
    console.log(response.body);
  })
  .catch((error) => {
    console.error(error);
  });
```

```python
import os
from sendgrid import SendGridAPIClient


sg = SendGridAPIClient(os.environ.get("SENDGRID_API_KEY"))

params = {"limit": 5}

response = sg.client.suppression.blocks.get(query_params=params)

print(response.status_code)
print(response.body)
print(response.headers)
```

```csharp
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using SendGrid;

public class Program {
    public static async Task Main() {
        string apiKey = Environment.GetEnvironmentVariable("SENDGRID_API_KEY");
        var client = new SendGridClient(apiKey);

        var queryParams = @"{'limit': 5}";

        var response = await client.RequestAsync(
            method: SendGridClient.Method.GET,
            urlPath: "suppression/blocks",
            queryParams: queryParams);

        Console.WriteLine(response.StatusCode);
        Console.WriteLine(response.Body.ReadAsStringAsync().Result);
        Console.WriteLine(response.Headers.ToString());
    }
}
```

```java
import com.sendgrid.*;
import java.io.IOException;

public class Example {
    public static void main(String[] args) throws IOException {
        try {
            SendGrid sg = new SendGrid(System.getenv("SENDGRID_API_KEY"));
            Request request = new Request();
            request.setMethod(Method.GET);
            request.setEndpoint("/suppression/blocks");
            request.addQueryParam("limit", "5");
            Response response = sg.api(request);
            System.out.println(response.getStatusCode());
            System.out.println(response.getBody());
            System.out.println(response.getHeaders());
        } catch (IOException ex) {
            throw ex;
        }
    }
}
```

```go
package main

import (
	"fmt"
	"github.com/sendgrid/sendgrid-go"
	"os"
)

func main() {
	apiKey := os.Getenv("SENDGRID_API_KEY")
	host := "https://api.sendgrid.com"
	request := sendgrid.GetRequest(apiKey, "/v3/suppression/blocks", host)
	request.Method = "GET"
	queryParams := make(map[string]string)
	queryParams["limit"] = "5"
	request.QueryParams = queryParams
	response, err := sendgrid.API(request)
	if err != nil {
		fmt.Println(err.Error())
		os.Exit(1)
	} else {
		fmt.Println(response.StatusCode)
		fmt.Println(response.Body)
		fmt.Println(response.Headers)
	}
}
```

```php
<?php
// Uncomment the next line if you're using a dependency loader (such as Composer) (recommended)
// require 'vendor/autoload.php';

// Uncomment next line if you're not using a dependency loader (such as Composer)
// require_once '<PATH TO>/sendgrid-php.php';

$apiKey = getenv("SENDGRID_API_KEY");
$sg = new \SendGrid($apiKey);
$query_params = json_decode('{
    "limit": 5
}');

try {
    $response = $sg->client
        ->suppression()
        ->blocks()
        ->get(null, $query_params);
    print $response->statusCode() . "\n";
    print_r($response->headers());
    print $response->body() . "\n";
} catch (Exception $ex) {
    echo "Caught exception: " . $ex->getMessage();
}
```

```ruby
require 'sendgrid-ruby'
include SendGrid

sg = SendGrid::API.new(api_key: ENV['SENDGRID_API_KEY'])
params = JSON.parse('{
  "limit": 5
}')

response = sg.client.suppression.blocks.get(query_params: params)
puts response.status_code
puts response.headers
puts response.body
```

```bash
curl -G -X GET "https://api.sendgrid.com/v3/suppression/blocks?limit=5" \
--header "Authorization: Bearer $SENDGRID_API_KEY"
```

If you want to retrieve items beyond the first page, you can use the `offset` parameter as follows. Assume you are still working with a page size of 5 as determined by your `limit` query parameter and you have more than 15 items. To request the fourth page of items, you can use the `offset` parameter to skip over the first 15 items, i.e. you start retrieving items starting after the first three pages of 5 items each:

Retrieve a specific page from the list of all blocks

```js
const client = require("@sendgrid/client");
client.setApiKey(process.env.SENDGRID_API_KEY);

const queryParams = {
  limit: 5,
  offset: 15,
};

const request = {
  url: `/v3/suppression/blocks`,
  method: "GET",
  qs: queryParams,
};

client
  .request(request)
  .then(([response, body]) => {
    console.log(response.statusCode);
    console.log(response.body);
  })
  .catch((error) => {
    console.error(error);
  });
```

```python
import os
from sendgrid import SendGridAPIClient


sg = SendGridAPIClient(os.environ.get("SENDGRID_API_KEY"))

params = {"limit": 5, "offset": 15}

response = sg.client.suppression.blocks.get(query_params=params)

print(response.status_code)
print(response.body)
print(response.headers)
```

```csharp
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using SendGrid;

public class Program {
    public static async Task Main() {
        string apiKey = Environment.GetEnvironmentVariable("SENDGRID_API_KEY");
        var client = new SendGridClient(apiKey);

        var queryParams = @"{'limit': 5, 'offset': 15}";

        var response = await client.RequestAsync(
            method: SendGridClient.Method.GET,
            urlPath: "suppression/blocks",
            queryParams: queryParams);

        Console.WriteLine(response.StatusCode);
        Console.WriteLine(response.Body.ReadAsStringAsync().Result);
        Console.WriteLine(response.Headers.ToString());
    }
}
```

```java
import com.sendgrid.*;
import java.io.IOException;

public class Example {
    public static void main(String[] args) throws IOException {
        try {
            SendGrid sg = new SendGrid(System.getenv("SENDGRID_API_KEY"));
            Request request = new Request();
            request.setMethod(Method.GET);
            request.setEndpoint("/suppression/blocks");
            request.addQueryParam("limit", "5");
            request.addQueryParam("offset", "15");
            Response response = sg.api(request);
            System.out.println(response.getStatusCode());
            System.out.println(response.getBody());
            System.out.println(response.getHeaders());
        } catch (IOException ex) {
            throw ex;
        }
    }
}
```

```go
package main

import (
	"fmt"
	"github.com/sendgrid/sendgrid-go"
	"os"
)

func main() {
	apiKey := os.Getenv("SENDGRID_API_KEY")
	host := "https://api.sendgrid.com"
	request := sendgrid.GetRequest(apiKey, "/v3/suppression/blocks", host)
	request.Method = "GET"
	queryParams := make(map[string]string)
	queryParams["limit"] = "5"
	queryParams["offset"] = "15"
	request.QueryParams = queryParams
	response, err := sendgrid.API(request)
	if err != nil {
		fmt.Println(err.Error())
		os.Exit(1)
	} else {
		fmt.Println(response.StatusCode)
		fmt.Println(response.Body)
		fmt.Println(response.Headers)
	}
}
```

```php
<?php
// Uncomment the next line if you're using a dependency loader (such as Composer) (recommended)
// require 'vendor/autoload.php';

// Uncomment next line if you're not using a dependency loader (such as Composer)
// require_once '<PATH TO>/sendgrid-php.php';

$apiKey = getenv("SENDGRID_API_KEY");
$sg = new \SendGrid($apiKey);
$query_params = json_decode('{
    "limit": 5,
    "offset": 15
}');

try {
    $response = $sg->client
        ->suppression()
        ->blocks()
        ->get(null, $query_params);
    print $response->statusCode() . "\n";
    print_r($response->headers());
    print $response->body() . "\n";
} catch (Exception $ex) {
    echo "Caught exception: " . $ex->getMessage();
}
```

```ruby
require 'sendgrid-ruby'
include SendGrid

sg = SendGrid::API.new(api_key: ENV['SENDGRID_API_KEY'])
params = JSON.parse('{
  "limit": 5,
  "offset": 15
}')

response = sg.client.suppression.blocks.get(query_params: params)
puts response.status_code
puts response.headers
puts response.body
```

```bash
curl -G -X GET "https://api.sendgrid.com/v3/suppression/blocks?limit=5&offset=15" \
--header "Authorization: Bearer $SENDGRID_API_KEY"
```

## Use the `email` query parameter to filter results

The code samples below show how to use the `email` query parameter to filter the Block records returned by the `GET` request. A Block record is included in the results if the Block's `email` property starts with the value of the `email` query parameter. One or more `%25` wildcards can be used in the `email` query parameter.

Any [reserved characters should be percent-encoded](https://en.wikipedia.org/wiki/Percent-encoding#Reserved_characters) to avoid any unintended encoding/decoding of characters.

### Filter results without wildcard

The code sample below shows examples of how to `GET` all Block records with `email` properties that begin with the string "sales".

Filter results without wildcard

```js
const client = require("@sendgrid/client");
client.setApiKey(process.env.SENDGRID_API_KEY);

const queryParams = { email: "sales" };

const request = {
  url: `/v3/suppression/blocks`,
  method: "GET",
  qs: queryParams,
};

client
  .request(request)
  .then(([response, body]) => {
    console.log(response.statusCode);
    console.log(response.body);
  })
  .catch((error) => {
    console.error(error);
  });
```

```python
import os
from sendgrid import SendGridAPIClient


sg = SendGridAPIClient(os.environ.get("SENDGRID_API_KEY"))

params = {"email": "sales"}

response = sg.client.suppression.blocks.get(query_params=params)

print(response.status_code)
print(response.body)
print(response.headers)
```

```csharp
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using SendGrid;

public class Program {
    public static async Task Main() {
        string apiKey = Environment.GetEnvironmentVariable("SENDGRID_API_KEY");
        var client = new SendGridClient(apiKey);

        var queryParams = @"{'email': 'sales'}";

        var response = await client.RequestAsync(
            method: SendGridClient.Method.GET,
            urlPath: "suppression/blocks",
            queryParams: queryParams);

        Console.WriteLine(response.StatusCode);
        Console.WriteLine(response.Body.ReadAsStringAsync().Result);
        Console.WriteLine(response.Headers.ToString());
    }
}
```

```java
import com.sendgrid.*;
import java.io.IOException;

public class Example {
    public static void main(String[] args) throws IOException {
        try {
            SendGrid sg = new SendGrid(System.getenv("SENDGRID_API_KEY"));
            Request request = new Request();
            request.setMethod(Method.GET);
            request.setEndpoint("/suppression/blocks");
            request.addQueryParam("email", "sales");
            Response response = sg.api(request);
            System.out.println(response.getStatusCode());
            System.out.println(response.getBody());
            System.out.println(response.getHeaders());
        } catch (IOException ex) {
            throw ex;
        }
    }
}
```

```go
package main

import (
	"fmt"
	"github.com/sendgrid/sendgrid-go"
	"os"
)

func main() {
	apiKey := os.Getenv("SENDGRID_API_KEY")
	host := "https://api.sendgrid.com"
	request := sendgrid.GetRequest(apiKey, "/v3/suppression/blocks", host)
	request.Method = "GET"
	queryParams := make(map[string]string)
	queryParams["email"] = "sales"
	request.QueryParams = queryParams
	response, err := sendgrid.API(request)
	if err != nil {
		fmt.Println(err.Error())
		os.Exit(1)
	} else {
		fmt.Println(response.StatusCode)
		fmt.Println(response.Body)
		fmt.Println(response.Headers)
	}
}
```

```php
<?php
// Uncomment the next line if you're using a dependency loader (such as Composer) (recommended)
// require 'vendor/autoload.php';

// Uncomment next line if you're not using a dependency loader (such as Composer)
// require_once '<PATH TO>/sendgrid-php.php';

$apiKey = getenv("SENDGRID_API_KEY");
$sg = new \SendGrid($apiKey);
$query_params = json_decode('{
    "email": "sales"
}');

try {
    $response = $sg->client
        ->suppression()
        ->blocks()
        ->get(null, $query_params);
    print $response->statusCode() . "\n";
    print_r($response->headers());
    print $response->body() . "\n";
} catch (Exception $ex) {
    echo "Caught exception: " . $ex->getMessage();
}
```

```ruby
require 'sendgrid-ruby'
include SendGrid

sg = SendGrid::API.new(api_key: ENV['SENDGRID_API_KEY'])
params = JSON.parse('{
  "email": "sales"
}')

response = sg.client.suppression.blocks.get(query_params: params)
puts response.status_code
puts response.headers
puts response.body
```

```bash
curl -G -X GET "https://api.sendgrid.com/v3/suppression/blocks?email=sales" \
--header "Authorization: Bearer $SENDGRID_API_KEY"
```

This request would return Blocks with email addresses that start with "sales", such as `salesteam@example.com` or `sales@example.com`.

### Filter results with wildcard

The code sample below shows examples of how to `GET` all Block records with `email` properties that contain the string "sales" anywhere in the email address.

Filter results with a wildcard

```js
const client = require("@sendgrid/client");
client.setApiKey(process.env.SENDGRID_API_KEY);

const queryParams = { email: "%25sales" };

const request = {
  url: `/v3/suppression/blocks`,
  method: "GET",
  qs: queryParams,
};

client
  .request(request)
  .then(([response, body]) => {
    console.log(response.statusCode);
    console.log(response.body);
  })
  .catch((error) => {
    console.error(error);
  });
```

```python
import os
from sendgrid import SendGridAPIClient


sg = SendGridAPIClient(os.environ.get("SENDGRID_API_KEY"))

params = {"email": "%25sales"}

response = sg.client.suppression.blocks.get(query_params=params)

print(response.status_code)
print(response.body)
print(response.headers)
```

```csharp
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using SendGrid;

public class Program {
    public static async Task Main() {
        string apiKey = Environment.GetEnvironmentVariable("SENDGRID_API_KEY");
        var client = new SendGridClient(apiKey);

        var queryParams = @"{'email': '%25sales'}";

        var response = await client.RequestAsync(
            method: SendGridClient.Method.GET,
            urlPath: "suppression/blocks",
            queryParams: queryParams);

        Console.WriteLine(response.StatusCode);
        Console.WriteLine(response.Body.ReadAsStringAsync().Result);
        Console.WriteLine(response.Headers.ToString());
    }
}
```

```java
import com.sendgrid.*;
import java.io.IOException;

public class Example {
    public static void main(String[] args) throws IOException {
        try {
            SendGrid sg = new SendGrid(System.getenv("SENDGRID_API_KEY"));
            Request request = new Request();
            request.setMethod(Method.GET);
            request.setEndpoint("/suppression/blocks");
            request.addQueryParam("email", "%25sales");
            Response response = sg.api(request);
            System.out.println(response.getStatusCode());
            System.out.println(response.getBody());
            System.out.println(response.getHeaders());
        } catch (IOException ex) {
            throw ex;
        }
    }
}
```

```go
package main

import (
	"fmt"
	"github.com/sendgrid/sendgrid-go"
	"os"
)

func main() {
	apiKey := os.Getenv("SENDGRID_API_KEY")
	host := "https://api.sendgrid.com"
	request := sendgrid.GetRequest(apiKey, "/v3/suppression/blocks", host)
	request.Method = "GET"
	queryParams := make(map[string]string)
	queryParams["email"] = "%25sales"
	request.QueryParams = queryParams
	response, err := sendgrid.API(request)
	if err != nil {
		fmt.Println(err.Error())
		os.Exit(1)
	} else {
		fmt.Println(response.StatusCode)
		fmt.Println(response.Body)
		fmt.Println(response.Headers)
	}
}
```

```php
<?php
// Uncomment the next line if you're using a dependency loader (such as Composer) (recommended)
// require 'vendor/autoload.php';

// Uncomment next line if you're not using a dependency loader (such as Composer)
// require_once '<PATH TO>/sendgrid-php.php';

$apiKey = getenv("SENDGRID_API_KEY");
$sg = new \SendGrid($apiKey);
$query_params = json_decode('{
    "email": "%25sales"
}');

try {
    $response = $sg->client
        ->suppression()
        ->blocks()
        ->get(null, $query_params);
    print $response->statusCode() . "\n";
    print_r($response->headers());
    print $response->body() . "\n";
} catch (Exception $ex) {
    echo "Caught exception: " . $ex->getMessage();
}
```

```ruby
require 'sendgrid-ruby'
include SendGrid

sg = SendGrid::API.new(api_key: ENV['SENDGRID_API_KEY'])
params = JSON.parse('{
  "email": "%25sales"
}')

response = sg.client.suppression.blocks.get(query_params: params)
puts response.status_code
puts response.headers
puts response.body
```

```bash
curl -G -X GET "https://api.sendgrid.com/v3/suppression/blocks?email=%2525sales" \
--header "Authorization: Bearer $SENDGRID_API_KEY"
```

This request would return Blocks with email addresses that contain "sales" anywhere in the email address, such as `george@sales.example.com` or `sales@example.com`.