The results of the inaugural VB ESA - M365 comparative test - an independent comparison of email security solutions that supplement Microsoft 365’s native security.
Testing ten full email security solutions and one open-source solution, the Q2 2026 VBSpam test highlighted how email threats increasingly hide behind ordinary business workflows and reputable delivery infrastructure.
The Q1 2026 VBSpam test measured the performance of a number of email security solutions against various streams of wanted, unwanted and malicious emails. Of the nine full solutions tested one achieved a VBSpam award and six achieved a VBSpam+ award.…
The Q4 2025 round of VBSpam testing once again revealed some sophisticated and targeted email threats, but we also observed continued adaptation and overall improvement in the filtering capabilities of email security solutions.
The Q3 2025 VBSpam test measured the performance of nine full email security solutions and one open-source solution against various streams of wanted, unwanted and malicious emails. We note that adversaries are increasingly blending social…
