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Email authentication

mxtoolbox.com email authentication

Combined SPF, DMARC, and DKIM validation for this domain.

Email authentication audit

Summary

Partial email authentication

2/3 layers passed

SPF: Needs work
DMARC: Pass
DKIM: Pass

Recommendations

Email authentication is partially configured — fix failing layers before DMARC enforcement.SPF record exists but has blocking errors or risky configuration.

SPF

SPF validation

Record found

Invalid SPF record

Query name

mxtoolbox.com

Terminal all

none

DNS lookup count

0

SPF record count

1

SPF record

v=spf1 redirect=mxtoolbox.com.hosted.spf-report.com

Errors

invalid mechanism syntax: redirect=mxtoolbox.com.hosted.spf-report.comSPF record has no mechanisms after v=spf1

Warnings

no explicit all mechanism at the end of the record

Recommendations

end the record with -all or ~all to define default handlingpair with DMARC Analyzer and DKIM Validator before tightening mail authentication enforcement

DMARC

DMARC analysis

Record found

Valid DMARC record

Policy

reject

Subdomain policy

Alignment

{ "dkim": "r", "spf": "r" }

Enforcement percentage

100

DMARC record

v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; fo=1; pct=100

Reporting

Warnings

relaxed alignment is enabled

DKIM

google

google._domainkey.mxtoolbox.com

Valid DKIM record

google._domainkey.mxtoolbox.com

DKIM record found

Queried record

google._domainkey.mxtoolbox.com

Version

DKIM1

Key type

rsa · 1024 bit

Query time

23 ms

Warnings

1024-bit RSA key: consider upgrading to 2048-bit

Raw TXT record

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCJEzpQHzFwyeMdycpwhHK6KlnqPFIbysy/ENw1SnzI2LjTi4loS9KcLNjUlbogAyn4JsQprwkMqwUrA5uATSVpKRBclXdlDrlLLmkTR1nISsg0WPfehPNU6K6NxiZ3YyoiHhHx2EiulpesEGn502RYcxqNN9JSPGr/mmorqPrF+QIDAQAB
Public key
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCJEzpQHzFwyeMdycpwhHK6KlnqPFIbysy/ENw1SnzI2LjTi4loS9KcLNjUlbogAyn4JsQprwkMqwUrA5uATSVpKRBclXdlDrlLLmkTR1nISsg0WPfehPNU6K6NxiZ3YyoiHhHx2EiulpesEGn502RYcxqNN9JSPGr/mmorqPrF+QIDAQAB

selector1

selector1._domainkey.mxtoolbox.com

Valid DKIM record

selector1._domainkey.mxtoolbox.com

DKIM record found

Queried record

selector1._domainkey.mxtoolbox.com

Version

DKIM1

Key type

rsa · 1024 bit

Query time

31 ms

Warnings

1024-bit RSA key: consider upgrading to 2048-bit

Raw TXT record

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCx/LE2O48EFy1ufqdfYmMMs97Rt1QHnzqKWwhoXxuzKmYZGCqVHJOzz9dm6QrVXKvlWJpCOLv3X9v43w6A1SAD8+IDtvyys01uohGADbyzsa0xbmrFxdFTq2llHHqKFWVm2xY1DSkkOO5a5/Ytcd8cvfIhmCpOhSd8KnlxSgtD+QIDAQAB;
Public key
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCx/LE2O48EFy1ufqdfYmMMs97Rt1QHnzqKWwhoXxuzKmYZGCqVHJOzz9dm6QrVXKvlWJpCOLv3X9v43w6A1SAD8+IDtvyys01uohGADbyzsa0xbmrFxdFTq2llHHqKFWVm2xY1DSkkOO5a5/Ytcd8cvfIhmCpOhSd8KnlxSgtD+QIDAQAB

k1

k1._domainkey.mxtoolbox.com

No DKIM record found

k1._domainkey.mxtoolbox.com

No DKIM record found

Queried record

k1._domainkey.mxtoolbox.com

Query time

23 ms

Errors

  • no DKIM record found at k1._domainkey.mxtoolbox.com

s1

s1._domainkey.mxtoolbox.com

No DKIM record found

s1._domainkey.mxtoolbox.com

No DKIM record found

Queried record

s1._domainkey.mxtoolbox.com

Query time

25 ms

Errors

  • no DKIM record found at s1._domainkey.mxtoolbox.com

default

default._domainkey.mxtoolbox.com

No DKIM record found

default._domainkey.mxtoolbox.com

No DKIM record found

Queried record

default._domainkey.mxtoolbox.com

Query time

29 ms

Errors

  • no DKIM record found at default._domainkey.mxtoolbox.com

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Guides

Practical guides for common Email Auth Checker tasks — DNS records, troubleshooting steps, and links to our free tools.

Back to Email Auth Checker