SPF and DMARC records for 4bus.io.vn
Live SPF and DMARC lookup for 4bus.io.vn: the raw TXT records and the policy they enforce.
try:
- mail hosts
- tinyhost.shop
- provider
- other
- spf record
- no
- dmarc policy
- none published
- disposable domain
- yes
- free consumer provider
- yes
SPF for 4bus.io.vn
There is no SPF record for 4bus.io.vn. Without it, any server can claim to send as 4bus.io.vn and receivers have nothing to check it against, which both invites spoofing and hurts deliverability. Spaw's risk model treats a missing SPF record as a minor negative signal.
DMARC for 4bus.io.vn
There is no DMARC record for 4bus.io.vn, so failed SPF or DKIM checks lead nowhere: no quarantine, no rejection, and no reports back to the owner.
Why it matters
Receivers use SPF, DKIM, and DMARC together to decide whether a message really came from 4bus.io.vn. A domain with a strict SPF record and an enforcing DMARC policy is hard to spoof and easier to deliver for; one without either is neither. Spaw reports has_spf and dmarc_policy on every lookup and adds a small risk weight when SPF is missing.
More checks for 4bus.io.vn
checked 2026-09-03 · sources: live-dns 2026-09-03 · disposable-domains 2026-09-02 · free-provider-domains 2026-09-02 · mx-provider-patterns 2026-09-03
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