SPF and DMARC records for seznam.cz
Live SPF and DMARC lookup for seznam.cz: the raw TXT records and the policy they enforce.
try:
- mail hosts
- mx1.seznam.cz, mx2.seznam.cz
- provider
- other
- spf record
- v=spf1 mx ip4:77.75.78.0/23 ip4:77.75.76.0/23 ip6:2a02:598::/32 ?all
- dmarc policy
- none
- dmarc record
- v=DMARC1; p=none; sp=reject; rua=mailto:[email protected]
- disposable domain
- no
- free consumer provider
- yes
SPF for seznam.cz
seznam.cz publishes an SPF record; it names its senders directly rather than through include mechanisms, and the record ends in ?all (neutral): unlisted servers are neither authorised nor refused, which gives receivers little to act on.
DMARC for seznam.cz
The DMARC policy for seznam.cz is p=none: the domain collects authentication reports but asks receivers not to act on failures. Spoofed mail is still delivered; the owner just gets told about it.
Why it matters
SPF says which servers may send as seznam.cz; DKIM signs the messages; DMARC tells receivers what to do when neither checks out and reports back to the owner. Together they decide whether mail from seznam.cz is trusted, and whether someone else can pretend to be seznam.cz. For verification they are a domain-quality signal: Spaw folds a missing SPF record into the risk score and reports has_spf and dmarc_policy on every email and domain lookup.
More checks for seznam.cz
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
Need this at scale?
The Spaw API runs the same checks plus mailbox-level SMTP verification, batch and bulk endpoints, and list monitoring — 10 free lookups a month, no card required.