Reset the email branding settings applied to outgoing emails sent on behalf of the organization back to their defaults. This also resets signatureName, replyToAddress, and globalBccAddresses, which are shared with the SMTP settings endpoint.

Usage notes

• To perform this operation, you must use API credentials owned by a user assigned an account type with the Manage email branding permission enabled.
• To read or update this setting for a tenant organization, use impersonation to obtain a token for that tenant, then call this endpoint with that token.
• signatureName, replyToAddress, and globalBccAddresses can also be updated from the SMTP settings endpoint (GET/PATCH at /v2/organizations/settings/smtp) endpoint. For these fields, the value set most recently from either endpoint is the one used.