🔒 Full Checker Complete email deliverability scan: SPF, DKIM, DMARC, MX, blacklists & more. | 📨 SPF Check and visualise your SPF record including the full DNS lookup tree. | 🔑 DKIM Scan all known DKIM selectors and validate key strength for your domain. | 📧 Email Headers Analyse raw email headers to trace delivery path and authentication results. | 📬 Bounce Decoder Decode NDR bounce messages and SMTP error codes to diagnose delivery failures. | 🦁 BIMI Verify your BIMI logo record and VMC certificate status. | 🔐 DNSSEC Validate the DNSSEC chain of trust: DS, DNSKEY, and RRSIG records. | 🔒 MTA-STS Check your MTA-STS DNS record and TLS policy file for enforced encryption. | 📋 TLS-RPT Validate your TLS-RPT reporting address for email transport encryption reports. | 🌍 WHOIS Look up domain registration details via RDAP.

🚫 Blacklist / RBL Check IPs and domains against major email blacklists and RBLs. | 🌐 DNS Propagation Check DNS record propagation across multiple global resolvers simultaneously.

✅ DMARC Builder Build a DMARC TXT record with the right policy, RUA/RUF and subdomain options. | 🛠 SPF Builder Generate a validated SPF record by selecting your email senders. | 📝 Route 53 Splitter Split long DKIM or SPF TXT records for AWS Route 53's 255-character limit.