Email authentication
rule.school email authentication
Combined SPF, DMARC, and DKIM validation for this domain.
Email authentication audit
Summary
Email authentication needs work
0/3 layers passed
Recommendations
No layer passed validation — review SPF TXT, _dmarc policy, and active DKIM selectors.SPF record exists but has blocking errors or risky configuration.Publish v=DMARC1 at _dmarc.<domain> after SPF and DKIM are stable.None of the checked DKIM selectors returned a valid record — add your provider selector.SPF
SPF validation
Record found
Invalid SPF record
Query name
rule.school
Terminal all
none
DNS lookup count
0
SPF record count
1
SPF record
v=spf1 redirect=_spf.yandex.net
Errors
invalid mechanism syntax: redirect=_spf.yandex.netSPF record has no mechanisms after v=spf1Warnings
no explicit all mechanism at the end of the recordRecommendations
end the record with -all or ~all to define default handlingpair with DMARC Analyzer and DKIM Validator before tightening mail authentication enforcementDMARC
DMARC analysis
No DMARC record found
Invalid DMARC record
Policy
none
Subdomain policy
Alignment
{}
Enforcement percentage
100
DMARC record
Errors
no DMARC record found at _dmarc.rule.schoolRecommendations
publish a TXT record at _dmarc.rule.school starting with v=DMARC1DKIM
google._domainkey.rule.school
No DKIM record found
google._domainkey.rule.school
Queried record
google._domainkey.rule.school
Query time
169 ms
Errors
- no DKIM record found at google._domainkey.rule.school
selector1
selector1._domainkey.rule.school
No DKIM record found
selector1._domainkey.rule.school
Queried record
selector1._domainkey.rule.school
Query time
26 ms
Errors
- no DKIM record found at selector1._domainkey.rule.school
k1
k1._domainkey.rule.school
No DKIM record found
k1._domainkey.rule.school
Queried record
k1._domainkey.rule.school
Query time
20 ms
Errors
- no DKIM record found at k1._domainkey.rule.school
s1
s1._domainkey.rule.school
No DKIM record found
s1._domainkey.rule.school
Queried record
s1._domainkey.rule.school
Query time
15 ms
Errors
- no DKIM record found at s1._domainkey.rule.school
default
default._domainkey.rule.school
No DKIM record found
default._domainkey.rule.school
Queried record
default._domainkey.rule.school
Query time
15 ms
Errors
- no DKIM record found at default._domainkey.rule.school