從 %2 的主區域進行區域 %1 轉送時，DNS 伺服器收到網域節點 %3 的記錄指出已經收到 CNAME (別名) 資源記錄 (RR)。每個網域名稱只能有一個 CNAME RR。%3 的 CNAME RR 將會被略過。

During transfer of zone %1 from master at %2, the DNS server received a resource record (RR) for domain node %3 at which an CNAME (alias) RR was already received. When used, the CNAME RR must be the only record for its domain name. The CNAME RR for %3 will be ignored.