[01] Audit
Enter any email address to instantly audit its domain's email security infrastructure — MX records, SPF, DMARC, reputation, and more.
[02] How it works
Enter email
Type any email address into the audit form.
Live analysis
We query DNS records and reputation databases in real time.
Instant report
Review each check, download a PDF, or action the recommendations.
[03] What we check
Validates the address against RFC 5322 formatting rules.
Checks whether the domain has mail servers configured to receive email.
Verifies the DNS record that authorises senders on behalf of the domain.
Inspects the policy that governs how failed authentication is handled.
Detects whether the domain is a known temporary or throw-away inbox provider.
Queries live reputation databases for breach history, spam signals, and trust indicators.
[04] FAQ
[05] Domain security
Alternic specialises in domain security — from brand protection and anti-cybersquatting to full DNS and email configuration audits.
Learn more