Check the SPF record of any domain
Results for
google.com
Email authentication
1 warning
Warning- SPF
- Pass:~all (soft fail), 1 of 10 lookups
- DMARC
- Pass:p=reject
- DKIM
- Warning:No key found
- MTA-STS
- Pass:Published
- TLS reporting
- Pass:Published
- BIMI
- Note:Not set up
- Mail servers
- smtp.google.com
SPF record
1 of 10 DNS lookups
Passv=spf1 include:_spf.google.com ~all
- Uses 1 of 10 DNS lookups.
- Ends in ~all (soft fail), so receivers accept mail from unlisted servers but mark it as suspicious.
Includes
1 domain
- include:_spf.google.com1 lookup
DMARC record
_dmarc.google.com
Passv=DMARC1; p=reject; rua=mailto:mailauth-reports@google.com
- Policy p=reject: receivers refuse mail that fails DMARC.
- Aggregate reports go to mailauth-reports@google.com.
- Policy
- reject (refuse)
- Subdomain policy
- reject (refuse)
- Percentage
- 100%
- Aggregate reports
- mailauth-reports@google.com
- Failure reports
- None
- DKIM alignment
- Relaxed
- SPF alignment
- Relaxed
DKIM keys
24 selectors checked
Warning- No DKIM key at 24 common selectors. Your mail provider may use its own: look it up as selector._domainkey.google.com.
Selectors we checked (24)
- selector1
- selector2
- default
- dkim
- k1
- k2
- k3
- s1
- s2
- smtp
- mx
- mandrill
- mxvault
- protonmail
- protonmail2
- fm1
- fm2
- sig1
- zmail
- kl
- s1024
- s2048
To check another selector, enter it as selector._domainkey.google.com.
MTA-STS, TLS reporting and BIMI
Optional records
MTA-STS
v=STSv1; id=20210803T010101;
- MTA-STS is on (policy id 20210803T010101). The policy file lives at https://mta-sts.google.com/.well-known/mta-sts.txt.
TLS reporting
v=TLSRPTv1;rua=mailto:sts-reports@google.com
- TLS reports go to sts-reports@google.com.
BIMI
- No BIMI record, so inboxes that support it show no brand logo next to your mail.
Run this lookup from code
The API returns this result as JSON. The free plan includes 100 API calls per month.
curl "https://hostingchecker.online/api/v1/email-auth?query=google.com" \
-H "Authorization: Bearer YOUR_API_KEY"How it works
How SPF works
When a server receives a message, it reads the domain in the envelope sender (the Return-Path) and looks up that domain's SPF record. If the sending server's IP address matches a mechanism in the record, SPF passes. If nothing matches, the all mechanism at the end decides the result.
SPF alone does not stop spoofing of the From address people see, because it checks the envelope sender only. DMARC closes that gap: it requires SPF or DKIM to pass for the same domain as the visible From address, and it tells receivers what to do when neither does.
- ip4 / ip6
- Allows an IPv4 or IPv6 address or range
- include
- Allows the servers in another domain's SPF record
- a / mx
- Allows the domain's own A or MX hosts
- all
- Matches everything else: -all fail, ~all soft fail
- redirect
- Uses another domain's SPF record instead
FAQ
SPF checker FAQ
Common questions about SPF records and why they fail.
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