List blocked email senders

GET/accounts/{account_id}/email-security/settings/block_senders

Returns a paginated list of blocked email sender patterns. These patterns prevent emails from matching senders from being delivered. Supports filtering by pattern type and searching across patterns.

Security

API Token

The preferred authorization scheme for interacting with the Cloudflare API. Create a token.

Example:Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY

API Email + API Key

The previous authorization scheme for interacting with the Cloudflare API, used in conjunction with a Global API key.

Example:X-Auth-Email: user@example.com

The previous authorization scheme for interacting with the Cloudflare API. When possible, use API tokens instead of Global API keys.

Example:X-Auth-Key: 144c9defac04969c7bfad8efaa8ea194

Accepted Permissions (at least one required)

Cloud Email Security: WriteCloud Email Security: Read

Path ParametersExpand Collapse

account_id: string

Identifier.

maxLength32

Query ParametersExpand Collapse

direction: optional "asc" or "desc"

The sorting direction.

One of the following:

"asc"

"desc"

order: optional "pattern" or "created_at"

Field to sort by.

One of the following:

"pattern"

"created_at"

page: optional number

Current page within paginated list of results.

minimum1

pattern: optional string

Filter by pattern value.

pattern_type: optional "EMAIL" or "DOMAIN" or "IP" or "UNKNOWN"

Filter by pattern type.

One of the following:

"EMAIL"

"DOMAIN"

"IP"

"UNKNOWN"

per_page: optional number

The number of results per page. Maximum value is 1000.

maximum1000

minimum1

search: optional string

Search term for filtering records. Behavior may change.

ReturnsExpand Collapse

errors: array of object { code, message, documentation_url, source }

code: number

minimum1000

message: string

documentation_url: optional string

source: optional object { pointer }

pointer: optional string

messages: array of object { code, message, documentation_url, source }

code: number

minimum1000

message: string

documentation_url: optional string

source: optional object { pointer }

pointer: optional string

success: true

Whether the API call was successful.

result: optional array of object { id, comments, created_at, 5 more }

id: optional string

Blocked sender pattern identifier

formatuuid

comments: optional string

maxLength1024

created_at: optional string

formatdate-time

is_regex: optional boolean

Deprecatedlast_modified: optional string

Deprecated, use modified_at instead. End of life: November 1, 2026.

formatdate-time

modified_at: optional string

formatdate-time

pattern: optional string

maxLength1024

minLength1

pattern_type: optional "EMAIL" or "DOMAIN" or "IP" or "UNKNOWN"

Type of pattern matching. Note: UNKNOWN is deprecated and cannot be used when creating or updating policies, but may be returned for existing entries.

One of the following:

"EMAIL"

"DOMAIN"

"IP"

"UNKNOWN"

result_info: optional object { count, page, per_page, total_count }

count: optional number

Total number of results for the requested service.

page: optional number

Current page within paginated list of results.

per_page: optional number

Number of results per page of results.

total_count: optional number

Total results available without any search parameters.

List blocked email senders

curl https://api.cloudflare.com/client/v4/accounts/$ACCOUNT_ID/email-security/settings/block_senders \
    -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN"

{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": [
    {
      "id": "f174e90a-fafe-4643-bbbc-4a0ed4fc8415",
      "comments": "Block sender with email test@example.com",
      "created_at": "2014-01-01T05:20:00.12345Z",
      "is_regex": false,
      "last_modified": "2014-01-01T05:20:00.12345Z",
      "modified_at": "2014-01-01T05:20:00.12345Z",
      "pattern": "test@example.com",
      "pattern_type": "EMAIL"
    }
  ],
  "result_info": {
    "count": 1,
    "page": 1,
    "per_page": 20,
    "total_count": 2000
  }
}

Returns Examples

{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": [
    {
      "id": "f174e90a-fafe-4643-bbbc-4a0ed4fc8415",
      "comments": "Block sender with email test@example.com",
      "created_at": "2014-01-01T05:20:00.12345Z",
      "is_regex": false,
      "last_modified": "2014-01-01T05:20:00.12345Z",
      "modified_at": "2014-01-01T05:20:00.12345Z",
      "pattern": "test@example.com",
      "pattern_type": "EMAIL"
    }
  ],
  "result_info": {
    "count": 1,
    "page": 1,
    "per_page": 20,
    "total_count": 2000
  }
}