DomailfixFree email tools
Check your domain's email setup and reputation, free and without signing up. Each check explains what is wrong and how to fix it.
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.DMARC checkerCheck your DMARC record and policy (none, quarantine or reject), report addresses and common mistakes.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.
Also from Domailfix
Verify email addresses one by one or as a whole list, and find work emails from a name and company website.