F
FreeMailCheck
☕ Support
◐
EMAIL DNS GENERATORS
DNS Record
Generator
Build validated, copy-ready email authentication and sender-security DNS records.
SPF
DKIM
DMARC
TLS-RPT
BIMI
SPF GENERATOR
Sender Policy Framework
Domain
Include A mechanism
Include MX mechanism
Include domains
One per line or comma separated.
IPv4 / CIDR
IPv6 / CIDR
Redirect
All policy
-all — Fail
~all — SoftFail
?all — Neutral
+all — Allow all
Generate SPF
DKIM GENERATOR
DomainKeys Identified Mail
Domain
Selector
Key type
RSA
Ed25519
Testing mode
Public key
Never paste a DKIM private key here.
Generate DKIM
DMARC GENERATOR
DMARC Policy
Domain
Policy
none
quarantine
reject
Subdomain policy
Inherit
none
quarantine
reject
Percentage
DKIM alignment
Relaxed
Strict
SPF alignment
Relaxed
Strict
Failure options (fo)
Aggregate reports — rua
Forensic reports — ruf
Generate DMARC
TLS-RPT GENERATOR
SMTP TLS Reporting
Domain
Reporting destinations
One destination per line or comma separated.
Generate TLS-RPT
BIMI GENERATOR
Brand Indicators for Message Identification
Domain
Selector
SVG logo URL
Authority / certificate URL
Optional when your BIMI deployment does not use an authority certificate.
Generate BIMI