spf.de.alibabacloud.com has no CNAME records.
Question and response
Question
dig spf.de.alibabacloud.com. NS
Answer
The response has no answer records.
Authority
alibabacloud.com. 1200 SOA ns3.aliyun.com. hostmaster.alibabadns.com. 2018062819 3600 1200 3600 360
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0