Email authentication

anyformat.ai SPF validation

Cached SPF record analysis for this domain.

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SPF validation

Record found

Valid SPF record

Query name

anyformat.ai

Terminal all

DNS lookup count

SPF record count

SPF record

v=spf1 include:dc-aa8e722993._spfm.anyformat.ai include:48308800.spf03.hubspotemail.net include:amazonses.com ~all

Mechanisms

+include:dc-aa8e722993._spfm.anyformat.ai+include:48308800.spf03.hubspotemail.net+include:amazonses.com~all

Recommendations

softfail (~all) is common during rollout; tighten to -all once includes are verifiedpair with DMARC Analyzer and DKIM Validator before tightening mail authentication enforcement

Tool switcher

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Same target (anyformat.ai) — open the next tool without retyping.

Email Auth CheckerSame targetRun SPF, DMARC, and DKIM checks in one auditanyformat.aiOpen
DMARC AnalyzerSame targetDMARC policy, alignment and reporting checksanyformat.aiOpen
DKIM ValidatorSame targetDKIM selector lookup and record validationanyformat.aiOpen
DNS CheckerSame targetAll major record types in one passanyformat.aiOpen
DIGSame targetOne record type, resolver-style answeranyformat.aiOpen
Domain IP LookupSame targetA and AAAA IP addresses for a domainanyformat.aiOpen
Domain Age CheckerSame targetCreation date, age, registrar and expiryanyformat.aiOpen
WHOISSame targetRegistrar, expiry and domain statusanyformat.aiOpen
HTTP Header CheckerSame targetResponse headers, redirects and cachinganyformat.aiOpen
HTTP/2 TesterSame targetHTTP/2 support, ALPN and TLS negotiationanyformat.aiOpen
SSL Certificate CheckerSame targetCertificate chain, SAN and TLS versionanyformat.aiOpen
CAA Record CheckerSame targetCheck CAA DNS records, authorized CAs, issuewild and iodefanyformat.aiOpen
Blacklist CheckerSame targetDNSBL reputation for IP and domainanyformat.aiOpen
Punycode ConverterSame targetUnicode ↔ Punycode for IDN domainsanyformat.aiOpen
URL SplitterSame targetBreak a URL into parts and query paramshttps://anyformat.ai/Open
Base64 CodecEncode and decode Base64 textOpen
Password GeneratorStrong random passwords for ops workOpen
Password Strength CheckerEntropy, crack time and password suggestionsOpen
Passphrase GeneratorMemorable random word phrases for safer sharing testsOpen
BIN CheckerCard brand, bank and country from BIN/IINOpen
IP CalculatorSubnet math for IPv4 and IPv6 CIDROpen
Browser Update CheckerBrowser version, update status and Client HintsOpen

Full tool catalog →

Guides

Practical guides for common SPF Validator tasks — DNS records, troubleshooting steps, and links to our free tools.

spf txt record basics, spf validator, v=spf1
SPF TXT record basics at the domain apex
SPF TXT record basics at the domain apex. SPF authorizes mail senders through a single v=spf1 TXT record published at the domain apex, not at _dmarc or DKIM selectors. DN01 returns parsed mechanisms, lookup estimates, warnings, and a shareable result URL for the same domain after DNS changes.
Read article →
include mechanisms third party senders, spf validator, v=spf1
Include mechanisms and third-party senders
Include mechanisms and third-party senders. SPF authorizes mail senders through a single v=spf1 TXT record published at the domain apex, not at _dmarc or DKIM selectors. DN01 returns parsed mechanisms, lookup estimates, warnings, and a shareable result URL for the same domain after DNS changes.
Read article →
terminal all qualifiers, spf validator, v=spf1
Terminal all qualifiers: pass, fail, softfail, neutral
Terminal all qualifiers: pass, fail, softfail, neutral. SPF authorizes mail senders through a single v=spf1 TXT record published at the domain apex, not at _dmarc or DKIM selectors. DN01 returns parsed mechanisms, lookup estimates, warnings, and a shareable result URL for the same domain after DNS changes.
Read article →
spf dns lookup limit, spf validator, v=spf1
SPF DNS lookup limit and flattening
SPF DNS lookup limit and flattening. SPF authorizes mail senders through a single v=spf1 TXT record published at the domain apex, not at _dmarc or DKIM selectors. DN01 returns parsed mechanisms, lookup estimates, warnings, and a shareable result URL for the same domain after DNS changes.
Read article →
spf dmarc alignment, spf validator, v=spf1
SPF alignment with DMARC enforcement
SPF alignment with DMARC enforcement. SPF authorizes mail senders through a single v=spf1 TXT record published at the domain apex, not at _dmarc or DKIM selectors. DN01 returns parsed mechanisms, lookup estimates, warnings, and a shareable result URL for the same domain after DNS changes.
Read article →
shareable spf validator results, spf validator, v=spf1
Shareable SPF validator result pages
Shareable SPF validator result pages. SPF authorizes mail senders through a single v=spf1 TXT record published at the domain apex, not at _dmarc or DKIM selectors. DN01 returns parsed mechanisms, lookup estimates, warnings, and a shareable result URL for the same domain after DNS changes.
Read article →

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SPF validation

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Related articles

SPF TXT record basics at the domain apex

Include mechanisms and third-party senders

Terminal all qualifiers: pass, fail, softfail, neutral

SPF DNS lookup limit and flattening

SPF alignment with DMARC enforcement

Shareable SPF validator result pages