Mail Security 3.0

BI.ZONE Mail Security 3.0 Enhances Detection of Password-Protected Archives and Spam Variants

BI.ZONE has released Mail Security 3.0, introducing new mechanisms to detect email threats and improved tools for administrators. The updated system now assigns additional risk scores to password-protected archives when their contents cannot be unpacked, without automatically classifying the archive itself as malicious. It also compares message texts to identify near-identical emails used in spam campaigns where attackers slightly alter wording to evade filters. Administrators can now incorporate SPF and DKIM verification results into delivery rules to better distinguish legitimate senders from impersonators. According to BI.ZONE statistics, phishing accounted for 90 percent of illegitimate email traffic in the first half of 2026. Additional protections include CAPTCHA challenges after repeated failed login attempts on administrative accounts. The release also adds bulk management of rules, improved logging with a side panel for message details, a new Events section, and Syslog export to external SIEM systems.