Australian Government Agency Recommends DMARC, DKIM, and SPF

In July the Australian Signals Directorate, part of the Department of Defence, and the Australian Cyber Security Centre issued a report for IT professionals titled, Malicious Email Mitigation Strategies. The report recommends the most effective methods of protecting organizations from email-borne attacks, and includes deploying DKIM, DMARC, and SPF. Furthermore it recommends using DMARC with […]

Best Authentication Practices for Email Senders

Product managers and engineers from some of the world’s largest mailbox providers recently got together to explain coming changes in email authentication at an industry conference. While we can’t share all that was said, we did get permission to share their combined best practice recommendations, which will work as well for a small business as […]

North American ISPs Using DMARC to Protect Inbox

The biggest global mailbox providers – AOL, Google*, Hotmail/Microsoft, NetEase, Yahoo – have been using DMARC to filter out fraudulent email sent to their users from the beginning. But readers have told us that some major North American ISPs are also using DMARC to protect their customers. We like to recognize these ISPs for using […]

Bad Actors: Please Adopt Email Authentication

A recent Trend Micro blog post suggests that the bad actors behind a current ransomware campaign are using email authentication and DMARC to make their messages more effective. One online article citing the post even includes a headline that incorrectly suggests that DMARC somehow enables the malware to bypass filters – which it assuredly does […]