No signup for basic checks. Every result is shareable by URL.
MX, SPF, DKIM and DMARC in one scan.
Find mail servers and the email provider.
Validate SPF and count DNS lookups.
Verify DKIM keys and key length.
Check or build a DMARC record.
See when a domain expires.
Trace hops and auth results.
Test authenticated SMTP connections.
Mailboxes and domains for your volume.
Estimate monthly infrastructure cost.
Calculate and grade bounce rate.