ExchangeDefender 10 has a new user experience - click on Preview New UI button to see it on Admin and SP roles. Leave Preview to exit.

Small business, big challenges? We've got answers. Find out what's hitting IT hardest in 2025, and how ExchangeDefender keeps you one step ahead.

Learn how Reject, Quarantine, and Allow shape your email security. Our new post explains how each rule affects mail flow, delivery, and threat protection — with quick, clear examples to help you fine-tune filtering policies and keep your organization safe and efficient.