In Outlook, users can hide a suggested recipient while addressing an email. For example, selecting the X next to a name in the To/Cc/Bcc suggestions list. This behaviour is commonly referred to as “Contact Masking”.
Microsoft are retiring this feature for users.
When this will happen
Contact masking will reach end of support on March 31, 2026.
Who is affected
All Outlook users (Desktop, Web, Mobile) who previously hid suggested recipients
Why Microsoft are making this change
This feature has been a recurring source of customer confusion and escalations, because contacts can be accidentally hidden for one user but not others.
While the impact is felt across Microsoft 365 experiences (not just Outlook). It also isn’t managed as a contact entity setting, which creates transparency and compliance challenges.
What will change in user experience
Previously hidden (masked) suggested recipients may reappear in:
-
Addressing (To/Cc/Bcc suggestions)
-
People suggestions
-
Search
No new feature will replace contact masking for users.
For more information, please contact the Service Desk on 01603 475603 or ict@norfolk.gov.uk