Look Up A Domain
Enter a domain to see its MX, SPF, and DMARC posture in real time. The findings are the same ones Auspex DMARC checks during onboarding.
How To Read The Findings
Severity
Each finding carries one of three severities. Address errors first, warnings next, and treat the OK rows as confirmation.
- Error — receivers will reject or treat the record as broken.
- Warning — the record works but is weaker than it should be.
- OK — the check passes against current best practice.
MX
MX records name your mail receivers. A domain with no MX records cannot receive email — and should publish a strong DMARC policy precisely because there is no legitimate sender to protect.
SPF
The lookup walks your SPF chain to count DNS lookups against the RFC 7208 §4.6.4 limit of 10, checks the trailing all mechanism, and flags the deprecated ptr mechanism. Multiple SPF records produce a permerror.
DMARC
The lookup inspects the policy, alignment modes, and reporting destinations at _dmarc.<your-domain>. A p=none policy is monitoring-only; a missing rua tag means reports go nowhere.
Receive Friendly Summaries
Register your domain in the Auspex portal and we'll convert every report receivers send into a clear email.