Guides
How to Verify an Email Attachment Server Before Accepting FilesEmail attachments can arrive from a familiar contact while being delivered through an unfamiliar or compromised server. A trustworthy sender address is useful,…Use DMARC Reports to Find Unauthorized Email SendersDMARC reports provide a practical view of which systems send messages claiming to represent your domain. They can reveal legitimate providers you forgot to…Why an SPF Fail From Your Own IP Demands Immediate InvestigationAn SPF failure means the sending IP address is not authorized by the domain’s published Sender Policy Framework record. When that address belongs to your…How to Set Up Real-Time Alerts for a Falling Domain Trust ScoreA domain trust score can change quickly when authentication records break, a mailbox is compromised, or recipients begin marking messages as spam. Waiting for…Compare Domain Trust Scores With ConfidenceA domain’s trust score offers a practical snapshot of how reliably it appears to send legitimate email. Trusted Sender Score brings reputation signals, email…Finding Weak Email Authentication Across Your IndustryEmail authentication gaps are often invisible until a spoofed message reaches customers, suppliers, or employees. A domain may have an active website and a…Building Email Authentication Checks Into CI/CDEmail authentication failures often reach production because DNS records are reviewed manually, in a different system, or only after a customer reports…Why Email Sending Subdomains Deserve Regular Trust ChecksEmail sending subdomains often operate behind the scenes, supporting marketing campaigns, transactional messages, product alerts, and customer communications.…Automating Trust Checks for Newly Registered DomainsNew domains can become operational before their email security settings are fully configured. If a registration workflow sends messages immediately, an…How to Spot Spear Phishing Beyond Authentication ChecksTo identify a spear phishing email that passes all authentication checks, you must look beyond technical validation. SPF, DKIM, and DMARC can confirm that a…