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Update a blocked email sender

An MCP tool from the Cloudflare API server, hosted on mcp.hjlabs.in.

Update a blocked email sender Updates an existing blocked sender pattern. Only provided fields will be modified. The pattern… [PATCH /accounts/{account_id}/email-security/settings/block_senders/{pattern_id}]

Name on the gateway: cloudflare_api__email_security_update_blocked_sender · may change things.

Parameters

NameTypeDescription
account_id requiredstringaccount_id parameter
pattern_id requiredstringpattern_id parameter
commentsstring
created_atstring
expires_atstringTimestamp at which the pattern expires. After…
idstringBlocked sender pattern identifier.
is_regexbooleanWhether pattern is a regular expression instead…
last_modifiedstringDeprecated, use modified_at instead. End of…
modified_atstring
patternstringThe pattern value to match. The format depends…
pattern_typeEMAIL | DOMAIN | IP | UNKNOWNType of pattern matching. - EMAIL: matches a…

How to call it

Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:

call_tool arguments
{
  "name": "cloudflare_api__email_security_update_blocked_sender",
  "arguments": {
    "account_id": "…",
    "pattern_id": "…"
  }
}

Or connect the Cloudflare API server directly, which lists 3,127 tools including this one:

Run in your terminal
claude mcp add --transport http hj-cloudflare-api https://mcp.hjlabs.in/mcp/cloudflare-api \
  --header "Authorization: Bearer YOUR_API_KEY"

Try asking

Use the update a blocked email sender tool with account_id set to ….

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