DMARC Record Generator
Create a DMARC policy record step by step – from monitoring (p=none) to full protection (p=reject) – with reporting addresses and alignment.
DMARC ties SPF and DKIM together and tells receiving servers what to do with mail that fails – and it sends you reports showing who is sending as your domain. Build the record step by step and follow the safe roll-out path from monitoring to full protection.
The safe roll-out
p=nonewith aruaaddress – collect reports for 2–4 weeks.- Fix every legitimate sender that fails (add it to SPF or set up DKIM).
p=quarantine– failures go to spam. Optionally start withpct=25.p=reject– spoofed mail is refused. Keep reading the reports.
常见问题
Where does the record go?
Create a TXT record named _dmarc (for example _dmarc.example.com) with the generated value.
Should I go straight to p=reject?
Not on a domain that already sends mail. Start with p=none and read the reports for a few weeks – they reveal forgotten senders (invoicing, CRM, website forms) that would otherwise be blocked.
更多工具
全部工具 →DKIM Record Generator
Generate a DKIM key pair in your browser and get the DNS TXT record, the private key and ready-to-use OpenDKIM settings – or turn an existing public key into a record.
打开工具 Email & DNSDNS Lookup
Look up A, AAAA, MX, TXT, NS, CNAME, SOA, CAA, SRV and PTR records for any domain or IP address.
打开工具 Email & DNSSPF, DKIM & DMARC Checker
Check a domain’s MX, SPF, DMARC and DKIM records in one go, with plain-English findings and fixes for common mistakes.
打开工具