25 Apr, 2026

Microsoft 365 ‘Direct Send’ abused to send phishing as internal users

An ongoing phishing campaign abuses a little‑known feature in Microsoft 365 called “Direct Send” to evade detection by email security and steal credentials. Direct Send is a Microsoft 365 feature that allows on‑premises devices, applications, or cloud services to send emails through a tenant’s smart host as if they originated from the organization’s domain. It’s […]

6 mins read