Free tools
Check your email and domain.
No account, no cost and instant results. From DMARC and SPF to an SSL test, made by the team at Nimbus Cloudworks.
Email security
Domain Analyzer
One domain, every email check, one score
Open →DMARC Checker
Check your DMARC record
Open →SPF Checker
Check your SPF record and lookups
Open →DKIM Checker
Check a DKIM selector and key strength
Open →BIMI Checker
Check your BIMI record and logo
Open →MTA-STS Checker
Check enforced mail encryption
Open →Blacklist Checker
Is your mail IP on a blacklist?
Open →DMARC Generator
Create a DMARC record
Open →SPF Generator
Create an SPF record
Open →DNS and domain
Need help with your email security?
We set up DMARC, SPF, DKIM and MTA-STS for you and keep an eye on it, as part of Security and Monitoring.