# Update blacklisted email domains

Replaces the full list of blacklisted email domains for the tenant.
Existing blacklisted email domains are removed and replaced with the values provided in the request body.

To remove all blacklisted email domains, provide an empty array.

Endpoint: PUT /v4/blacklisted-email-domains
Version: 2026-03-27
Security: ZephrHmacHttp

## Response 200 fields (application/json):

  - `message` (string)
    Example: "Blacklisted email domains updated successfully"

## Response 201 fields (application/json):

  - `message` (string)
    Example: "Blacklisted email domains updated successfully"


## Response 400 fields