Check and build SPF, DKIM, DMARC, BIMI and mail delivery records.
MX LookupList the mail servers for a domain, confirm they respond, and check whether they offer STARTTLS.Pairs with mx record generatorSPF CheckerValidate your SPF record, visualize the include tree and count DNS lookups against the 10-lookup limit.Pairs with spf record generatorDKIM CheckerFind and validate DKIM public keys by trying common selectors or the one you provide.Pairs with dkim record generatorDMARC CheckerRead your DMARC record, explain every tag, and say what the published policy does and does not ask receivers to do.Pairs with dmarc record generatorBIMI CheckerCheck your BIMI record and logo, and whether your DMARC policy meets the prerequisites.Pairs with bimi record generatorMTA-STS CheckerValidate your MTA-STS DNS record and policy file so inbound mail cannot be downgraded to plain text.Pairs with mta sts generatorTLS-RPT CheckerCheck whether your domain publishes a TLS-RPT record so you receive reports about failed secure mail delivery.Pairs with tls rpt record generatorSMTP TLS CheckerConnect to a mail server and check STARTTLS support, certificate validity and the negotiated protocol.Email Header AnalyzerPaste raw email headers to see the delivery path, hop delays, authentication results and phishing red flags.