_spf.opensuse.org has no MX records.
Question and response
Question
dig _spf.opensuse.org. MX
Answer
The response has no answer records.
Authority
opensuse.org. 43200 SOA ns1.opensuse.org. admin.opensuse.org. 2026022601 7200 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0