Email security fundamentals
What these records actually do
SPF, DKIM and DMARC work together to stop spoofing and phishing. Understanding them is the difference between guessing and fixing deliverability properly.
Resources · Free tools · 01 / Email
MailFlow Analyser. Email health in one pass.
Scan a domain for SPF, DKIM, DMARC, BIMI and MX records, then get practical fixes for common deliverability problems.
Email security analysis: SPF, DKIM, DMARC
DNS and MX record checks
BIMI brand protection
DKIM selector discovery
Actionable status badges
Raw record display
Why it matters
Inbox placement depends on proof
SPF lists who may send for your domain. DKIM signs messages so receivers can verify authenticity. DMARC ties the policy together when something fails.
The tool found something?
Turn the result into a sensible fix.
Share what you tested and what the result means for the business. I can help diagnose the issue and plan the repair.