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Last checked about 18 hours ago
Your email authentication needs attention. Important security measures are missing or misconfigured.
Publish a DMARC record to protect your domain
DMARC improvement
0 / 50 points
No DMARC record found.
This domain exists but no record is published yet. Without DMARC, protection and reporting won't apply.
Protect your domain from email spoofing. Create a DMARC monitoring inbox with us to get started with email authentication and receive detailed reports about who's sending email on your behalf.
0 / 20 points
No BIMI Record Found
Publish a TXT record at default._bimi.gov.br with v=BIMI1, logo URL (l=) and optional verified mark certificate (a=).
30 / 30 points
SPF record is valid.
v=spf1 -all
Syntax Check
OK
DNS Lookup Count
0 / 10 max
Void Lookups
0 / 2 max
Fail: Reject emails from unauthorized servers (recommended for production)
Grouped by DNS record source (includes and sub-includes)
The check you just ran shows your current configuration. But DNS records change, sometimes without you knowing. A well-meaning IT change, a third-party provider update, or an unauthorized modification can break your email delivery overnight.
Configuration Drift
IT changes that accidentally break authentication
Provider Updates
Third-party services changing their SPF includes
Unauthorized Changes
Attackers modifying records to send as you
DMARCTrust monitors your DNS records continuously. When something changes, you get an email alert with exactly what changed and why it matters. No more surprises when customers complain their emails bounced.
Run a free email authentication check (DMARC, SPF, BIMI).
We will generate a shareable URL for your domain.
Try popular examples: google.com, amazon.com, booking.com
Discover how other organizations configure their email authentication
Frequently checked
Reject policy + valid SPF
Showing domains checked by our users. All data is from public DNS records.
We analyze your domain's email authentication: DMARC policy and alignment, SPF record and includes, and BIMI logo/CV when present.
Healthy authentication improves delivery and blocks spoofing. Major inbox providers increasingly require DMARC and robust SPF/DKIM practices for senders.
This check shows a snapshot. With DMARCTrust, you get continuous monitoring of your DMARC reports and DNS records, with instant alerts when something changes.