DNS_ERROR_NOT_ALLOWED_UNDER_DELEGATION - 9563 (0x255B)
The record could not be created because this part of the DNS namespace has been delegated to another server.
Updated: Feb 21, 2026
Technical Meaning
This error code indicates that a DNS record could not be created because the part of the DNS namespace in question has been delegated to another server. Delegation means that control over a portion of the domain name space is transferred from one DNS server to another, typically for administrative or performance reasons.
Error Details
The DNS_ERROR_NOT_ALLOWED_UNDER_DELEGATION error code (9563) is returned when an attempt is made to create a DNS record in a zone that has been delegated to another server. This implies that the local DNS server does not have authority over this part of the namespace and cannot perform the requested operation.
Usage Context
This error typically occurs during operations such as adding or modifying DNS records, particularly when working with zones that are managed by different servers. It is important for developers to understand the context in which this error might be encountered, especially when dealing with multi-server environments where namespace delegation is involved.
Developer Interpretation
When encountering DNS_ERROR_NOT_ALLOWED_UNDER_DELEGATION, it indicates that the operation attempted was not permitted due to the current state of DNS namespace management. This could mean that the local server does not have the necessary permissions or authority to perform the requested action on a delegated zone.
Related Errors
- DNS_ERROR_NO_SUCH_DOMAIN: The domain name specified in the request does not exist.
- DNS_ERROR_NAME_DOES_NOT_EXIST: A specific record type was requested, but no such record exists.
- DNS_ERROR_RCODE_REFUSED: The server refused to perform the operation due to policy or configuration issues.
FAQ
Q: What causes DNS_ERROR_NOT_ALLOWED_UNDER_DELEGATION?
A: This error occurs when attempting to create a DNS record in a zone that has been delegated to another server, and the local server does not have authority over this part of the namespace.
Q: How can I resolve this issue?
A: Ensure that you are operating within the correct context where you have authority over the DNS namespace. If necessary, contact the administrator responsible for the delegated zone to request permission or assistance with the operation.
Summary
DNS_ERROR_NOT_ALLOWED_UNDER_DELEGATION (9563) is a specific error code indicating that an attempt to create a DNS record in a delegated part of the namespace was not allowed. This error highlights issues related to namespace delegation and authority, which are common in multi-server environments managing different parts of the domain name space.