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API Reference
Email Sending
Suppressions

List account Email Sending suppressions

GET/accounts/{account_id}/email/sending/suppressions

Lists every active Email Sending suppression owned by the account: sending-domain suppressions first, then account-wide suppressions (including legacy rows with internal zone memberships). Each group is newest first.

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
Path ParametersExpand Collapse
account_id: string

Cloudflare account ID.

Query ParametersExpand Collapse
cursor: optional string

Opaque pagination cursor returned as result_info.next_cursor. It carries the filters that produced it.

maxLength2048
email: optional string

Exact email-address filter.

formatemail
per_page: optional number

Maximum number of suppressions to return per page.

maximum1000
minimum1
reason: optional "manual" or "complaint" or "hard_bounce" or 2 more

Filter to suppressions with this reason.

One of the following:
"manual"
"complaint"
"hard_bounce"
"soft_bounce"
"policy"
scope_type: optional "account" or "sending_domain"

Filter by scope: account returns only account-wide suppressions, sending_domain only sending-domain suppressions. Omit to list both, sending-domain suppressions first.

One of the following:
"account"
"sending_domain"
scope_value: optional string

Exact sending-domain filter. Requires scope_type=sending_domain.

maxLength1024
ReturnsExpand Collapse
errors: array of unknown
messages: array of unknown
result: array of object { id, created_at, email, 5 more }
id: string

Unique identifier for this suppression.

formatuuid
created_at: string

When the suppression was created.

formatdate-time
email: string

The suppressed email address.

formatemail
expires_at: string

When the suppression expires. Null for a permanent suppression.

formatdate-time
read_only: boolean

Whether clients may mutate this suppression. This is determined by the server and must not be inferred from reason.

reason: string

Why the address is suppressed: manual, complaint, hard_bounce, soft_bounce, or policy.

note: optional string

Advisory note for this suppression, if any.

scope: optional object { type } or object { type, value }

Where the suppression applies: account for every sending domain of the account, or sending_domain for one envelope MAIL FROM domain.

One of the following:
Type object { type }
type: "account"

Blocks the recipient for every sending domain of the account.

object { type, value }
type: "sending_domain"

Blocks the recipient only for mail whose envelope MAIL FROM uses value.

value: string

The sending domain: the domain part of the envelope MAIL FROM, lowercase, without a trailing dot.

maxLength1024
result_info: object { count, next_cursor, per_page }

Pagination metadata.

count: number

Number of suppressions in this page.

next_cursor: string

Opaque cursor for the next page. Pass it back as the cursor query parameter and continue until it is null. A bounded large-account scan may return a short intermediate page. Sending-domain suppressions are listed before account suppressions; each group is newest first.

per_page: number

Maximum number of suppressions requested per page.

success: boolean

List account Email Sending suppressions

curl https://api.cloudflare.com/client/v4/accounts/$ACCOUNT_ID/email/sending/suppressions \
    -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN"
{
  "errors": [
    {}
  ],
  "messages": [
    {}
  ],
  "result": [
    {
      "id": "396a5436-d4b0-42a6-b3fc-48e8fa522321",
      "created_at": "2026-01-02T02:20:00Z",
      "email": "user@example.com",
      "expires_at": "2027-01-01T00:00:00Z",
      "read_only": false,
      "reason": "hard_bounce",
      "note": "Imported from CRM",
      "scope": {
        "type": "sending_domain",
        "value": "mail.example.com"
      }
    }
  ],
  "result_info": {
    "count": 1,
    "next_cursor": null,
    "per_page": 100
  },
  "success": true
}
Returns Examples
{
  "errors": [
    {}
  ],
  "messages": [
    {}
  ],
  "result": [
    {
      "id": "396a5436-d4b0-42a6-b3fc-48e8fa522321",
      "created_at": "2026-01-02T02:20:00Z",
      "email": "user@example.com",
      "expires_at": "2027-01-01T00:00:00Z",
      "read_only": false,
      "reason": "hard_bounce",
      "note": "Imported from CRM",
      "scope": {
        "type": "sending_domain",
        "value": "mail.example.com"
      }
    }
  ],
  "result_info": {
    "count": 1,
    "next_cursor": null,
    "per_page": 100
  },
  "success": true
}