DomailfixDMARC record checker
DMARC tells receivers what to do with email that pretends to be from your domain, and sends you reports. Gmail and Yahoo require it from bulk senders.
Questions and answers
Which DMARC policy should I use?
Start with p=none to receive reports without affecting delivery. When the reports show your own email passes, move to p=quarantine and then p=reject.
Where do I add it?
Add a TXT record with the host name _dmarc at your DNS provider (for example Namecheap, GoDaddy or Cloudflare).
More free tools
Email deliverability checkerCheck a domain's SPF, DKIM, DMARC and mail servers in one go, free.SPF checkerCheck your SPF record for errors, the 10 DNS lookup limit, duplicate records and unsafe settings like +all.DKIM checkerFind a domain's DKIM keys under common selectors (Google, Microsoft 365, Zoho and more) or your own selector, and check the key strength.MX lookupSee which mail servers receive email for a domain, their IP addresses, reverse DNS and the email provider (Google Workspace, Microsoft 365, Zoho and more).Blacklist checkerCheck if your domain or mail server IP is on Spamhaus, SpamCop, Barracuda and other email blacklists.