Guides

How to Assess the Trust Score of a Newly Registered Domain
A newly registered domain has little or no history, so its trust profile cannot be judged by reputation alone. An empty record may mean the domain is clean, or…
What an abnormal DMARC failure rate tells you about email security
A DMARC failure rate shows how often receiving mail systems see messages from your domain that fail authentication alignment. When that percentage suddenly…
Why A High Sender Score Doesn’t Always Mean Safe Email
A high sender score can be reassuring, but it is not a guarantee that every message from a domain is legitimate. Reputation systems evaluate patterns such as…
Using Trusted Sender Score in security awareness training
Security awareness training is most effective when employees can apply its lessons to realistic messages. Trusted Sender Score gives instructors a practical…
How to secure your brand with a comprehensive domain trust strategy
A trusted brand depends on more than visual identity and strong customer service. Every message sent from a company domain becomes part of its public…
How to perform a historical reputation check on a suspicious domain
A suspicious domain can look harmless during a single lookup. Its current DNS records may be clean, its website may be offline, or its mail settings may have…
How to Spot a Phishing Campaign Using Newly Registered Domains
Phishing campaigns often rely on speed. Attackers register a fresh domain, copy a trusted brand’s visual identity, and begin sending messages before reputation…
How to validate email domains in your CRM with a bulk checker
A CRM can contain thousands of email addresses collected from forms, imports, partners, and older campaigns. Over time, domains become inactive, misconfigured,…
How to Identify a Mailbox Hijack Using DMARC Reports
A mailbox hijack occurs when an attacker gains access to a legitimate email account and uses it to send messages. This differs from ordinary domain spoofing:…
How to Build a Sender Trust Policy for Your Organization’s Email Gateway
An email gateway needs more than a simple allowlist or blocklist. Sender trust should be assessed through multiple signals, including domain ownership,…