SPF and DMARC records for 17tb.io.vn

SPF for 17tb.io.vn

17tb.io.vn publishes no SPF record. Receiving servers cannot tell which servers are allowed to send as 17tb.io.vn, so mail from the domain is easier to spoof and more likely to land in spam. A basic record (v=spf1 include:… -all) fixes that, and Spaw's risk score adds a small weight to addresses at domains without one.

DMARC for 17tb.io.vn

17tb.io.vn publishes no DMARC record. Receivers have no policy to apply when SPF or DKIM fails, and the domain owner receives no aggregate reports about who is sending as 17tb.io.vn.

Why it matters

SPF says which servers may send as 17tb.io.vn; 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 17tb.io.vn is trusted, and whether someone else can pretend to be 17tb.io.vn. 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 17tb.io.vn

• MX records for 17tb.io.vn
• Disposable domain check for 17tb.io.vn
• The same answer over the API: GET /api/v1/email/domain/17tb.io.vn