Abusix Email Threat Protection vs ConnectWise Email Security: Side-by-Side Comparison (2026)

Abusix Email Threat Protection

SMBs and mid-market teams running legacy mail servers will get immediate value from Abusix Email Threat Protection because DNS-based blocklists stop malicious traffic before it hits your infrastructure, not after; the 99.6% catch rate on inbound threats is real throughput, not marketing math. The tool integrates directly into existing mail stacks without rip-and-replace, and its Guardian Mail component delivers instant mitigation at the gateway level. This is not a replacement for post-delivery threat detection or user awareness training; if your threat model depends on catching phishing after it lands in inboxes, you're buying the wrong tool.

ConnectWise Email Security

Mid-market and SMB security teams drowning in phishing and BEC attacks will see immediate ROI from ConnectWise Email Security, specifically because its identity analysis engine catches impersonation attempts that signature-based filters routinely miss. The platform scores high on NIST DE.CM and DE.AE, meaning it's built to detect anomalies and characterize incidents rather than just block known threats. Skip this if you need advanced DLP with granular content fingerprinting or if your organization runs email on-premises; ConnectWise assumes cloud-first deployments and treats DLP as secondary to threat detection.