spfa.protection.partner.outlook.cn has no MX records.
Question and response
Question
dig spfa.protection.partner.outlook.cn. MX
Answer
The response has no answer records.
Authority
protection.partner.outlook.cn. 120 SOA ns1-36.azure-dns.cn. hostmaster.o365filtering.com. 2024062590 10800 3600 604800 120
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0