SPF, DKIM & DMARC Checker
Check whether your domain has valid SPF, DKIM, and DMARC records. Enter a domain (and optional DKIM selector) to see exactly what receivers see, with plain-English explanations of each record.
Domain
DKIM selector (optional)
SPF, DKIM, and DMARC in one minute
SPF is a TXT record listing the servers allowed to send email for your domain. DKIM adds a cryptographic signature to each message, published under a selector like google._domainkey.yourdomain.com. DMARC ties them together and tells receivers what to do when a message fails both. Since 2024, Gmail and Yahoo effectively require all three from anyone sending regularly — without them, even perfectly good one-to-one follow-ups can land in spam.
If DKIM shows as missing here, it usually means your provider uses a custom selector — check your email provider's DNS setup page for the exact name and re-run the check with it.
FollowClose Rainmaker sets up and verifies your sending domain automatically — DKIM, Return-Path, and reply tracking included — then sends your follow-up sequences from it.
Try it with your next call →