Guides
Subdomain Takeover Risks and Email Security ControlsA subdomain takeover occurs when an abandoned or misconfigured subdomain still points to an external service that the organization no longer controls. An…How to Evaluate a Cold Email Sender’s TrustworthinessCold email can create valuable business relationships, but an unknown message also creates an opportunity for phishing, malware delivery, business email…Why a Low Domain Trust Score May Indicate a Data BreachA domain trust score reflects how safely and consistently a domain appears to send email. It can be influenced by authentication records, sending behavior,…Enrich Threat Intelligence Feeds With Sender Trust SignalsThreat intelligence feeds become more useful when raw indicators include context. A suspicious domain, for example, is easier to prioritize when analysts can…How to Protect Your Customers from Domain Spoofing AttacksCustomers trust recognizable sender addresses, familiar logos, and consistent communication patterns. Attackers exploit that trust by impersonating a company’s…Using Bulk Email Trust Checks in M&A Due DiligenceEmail infrastructure can reveal operational and security risks that may not appear in financial statements or ordinary technical questionnaires. During a…Blacklist checks and trust scores for safer email decisionsEmail security tools often use the terms blacklist check and trust score check as though they describe the same process. They do not. A blacklist check usually…How to Check Whether Your Domain Has Been CompromisedA compromised domain can damage customer trust, expose employees to phishing, and cause legitimate messages to land in spam. Attackers may misuse your domain…How to Identify and Block Emails from Impersonated BrandsBrand impersonation emails are designed to look familiar at a glance. They may copy a company’s logo, colors, writing style, invoice format, or…How to Use Anti-Spoofing Resources for Team TrainingEmail spoofing is a team-wide security problem, not just a technical issue for administrators. Attackers can imitate trusted domains, forge sender details, or…