Email DNS Tool
SPF, DKIM and DMARC Checker
Check whether a domain has the DNS records that help business email reach inboxes: MX, SPF, DMARC and optional DKIM.
SPFDKIMDMARCMX records
--Run a check to see DNS results.
What are SPF, DKIM and DMARC?
SPF lists who can send email for your domain, DKIM signs messages, and DMARC tells receiving servers what to do when authentication fails.
Why email authentication matters
Good email authentication reduces spoofing risk and helps legitimate messages from businesses, charities, SMEs and parish councils reach inboxes.
Why your emails may go to spam
Emails can go to spam when SPF is missing, DKIM is not enabled, DMARC is absent, or a sending service has not been authorised in DNS.
How SharkyWeb can help configure business email
SharkyWeb can help configure Microsoft 365, Google Workspace, SPF, DKIM, DMARC, contact forms and practical email deliverability fixes.
Need help fixing email deliverability? Ask SharkyWeb.