Free email tools for all your domains
Each tool checks up to 10 domains or subdomains in one run against live public DNS, so you see what receivers see right now.
No signup, and nothing is stored.
DMARC checker
Reads the DMARC, SPF and MX records on each domain and tells you what to fix, in plain English.
Open the DMARC checkerSPF checker
Follows every include in each SPF record and counts the DNS lookups against the limit of 10.
Open the SPF checkerMX record checker
Shows where each domain's mail goes, in priority order, and whether it can receive mail at all.
Open the MX record checker