Guides
How to Perform a Reverse MX Lookup to Find Domain Spoofing RisksEmail spoofing often begins with a forged sender address, but the receiving infrastructure can reveal useful clues. A reverse MX lookup examines which domains…What DMARC Failure Reports Reveal About Phishing ActivityDMARC failure reports provide an operational view of how email claiming to represent your domain is being sent, evaluated, and rejected. While a DNS record…Monitor Email Authentication Across Your SaaS WorkflowsSaaS products often send several types of email: account verification messages, password resets, invoices, alerts, onboarding campaigns, and product…How to Spot Phishing When DMARC Authentication PassesA phishing email can pass DMARC and still be dangerous. DMARC confirms that the message’s sending infrastructure is authorized and that the visible From domain…Building a Practical Domain Trust Policy for Security OperationsA domain trust score policy gives a security operations team a consistent way to assess whether a domain is safe, properly authenticated, and suitable for…Bulk DKIM Checks for Finding Exposed Signing KeysBulk domain analysis can quickly reveal email authentication weaknesses across a portfolio. It is useful for security teams managing many brands, subsidiaries,…How to Analyze DMARC Failures from Compromised Sending SourcesA DMARC failure means an email did not satisfy the authentication and alignment rules published by a domain owner. When the sending source has been…How to Detect a Hijacked Domain Used for SpamA compromised domain can be turned into a delivery platform for phishing, malware, fake invoices, and high-volume promotional spam. Attackers may gain access…How to Set Up Automated Alerts for Domain Reputation ChangesA strong domain reputation supports reliable email delivery and helps recipients distinguish legitimate messages from phishing attempts. Reputation can change…Responding to a Sudden Drop in Domain TrustA critical domain falling below its acceptable trust threshold can disrupt email delivery, expose customers to impersonation, and signal an active compromise.…