Guides
How to validate email domains in your CRM with a bulk checkerA 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 ReportsA 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 GatewayAn email gateway needs more than a simple allowlist or blocklist. Sender trust should be assessed through multiple signals, including domain ownership,…Why sender trust requires more than a blacklist checkA blacklist check is a useful first filter, but it provides only a narrow view of email sender trust. It can show whether an IP address or domain appears on a…How to use the developer API for custom alerting on domain changesDomain reputation can change quietly, long before a user notices a delivery failure or a suspicious message. A new DNS record, an altered DKIM key, or a…How to Recover When a Trusted Sender’s Domain Scores LowA sudden drop in email trust can be alarming, especially when messages have been delivered reliably for months. A low sender score does not always mean the…Validate Social Media Notification Emails with Trusted Sender ScoreSocial media alerts are designed to prompt quick action: a new login, password reset, direct message, connection request, or account warning. That urgency…How to Read Negative Signals in a DMARC ReportDMARC reports provide evidence about how receiving mail systems evaluate messages that claim to come from your domain. A negative result may indicate failed…How to Perform a Bulk Reputation Check During a Security AuditA security audit should examine more than whether a domain appears on a blocklist. Sender reputation, authentication records, spoofing exposure, and historical…Why Valid DKIM Does Not Make a Domain SafeA valid DKIM signature can show that an email was authorized by a particular domain or service. It is an important part of email authentication, but it does…