Guides

Validating suspicious email headers using Trusted Sender Score
Every week, thousands of Australians receive emails that pretend to be from their bank, a courier company, or a government agency. Some land in inboxes in…
Why a New WHOIS Record and Low Trust Score Deserve Attention
A domain with a recently created WHOIS record and a poor trust score should be treated cautiously, especially when it appears in an unexpected email. This…
Reading DMARC reports with multiple DKIM signatures
When you open a DMARC aggregate report and see two or three different DKIM signatures attached to messages that look identical, the first reaction is often…
A Yearly Email Authentication Review That Matches Today's Threat Landscape
Email remains the soft underbelly of most Australian organisations, from suburban accounting practices in Parramatta to remote cattle stations in the Pilbara.…
Why visual domain similarity misleads email triage in Australia
Mailrooms from Perth to Parramatta open their inboxes each morning and start sorting legitimate correspondence from junk. A familiar visual cue often draws the…
Auto-Quarantine Emails When a Domain's Trust Score Drops in Real Time
Inboxes across Australian businesses are getting hammered by spoofed invoices, fake Australia Post tracking alerts, and ATO impersonation emails that slip past…
Reading a failing DKIM with a passing SPF-aligned DMARC
Email authentication can look contradictory on the surface: a message might arrive with a broken DKIM signature, yet still pass DMARC because the SPF check…
Detect Vendor Email Security Changes with Bulk Domain Checks
A vendor can change its email security settings without sending customers a notice. A new marketing platform, outsourced help desk, merger, or DNS update may…
Authentication Records Can Hide a Phishing Setup
A domain with no legitimate sending history can still publish SPF, DKIM and DMARC records. At first glance, that combination looks reassuring. It may show that…
Building a Resilient Domain Portfolio for Consistent Email Security
For Australian organisations operating across Sydney, Melbourne, Brisbane and Perth, managing email security across sprawling domain portfolios has become a…