Forum Discussion
TonyRedmond
Aug 19, 2025MVP
Unverified Sender Messages Highlighted By Outlook Mobile
Outlook Mobile clients have started to highlight messages received from unverified senders. But what does “unverified” mean and what can be done to fix the problem? The issue lies at the sender’s end...
GengCong
Aug 19, 2025Copper Contributor
Unverified: Could it be that the email administrator or the server failed to properly identify the sender of this email (meaning the security verification did not pass)?