Microsoft provides a guide on how to manage blocked senders:
For Outlook Desktop Apps for Windows:
https://support.microsoft.com/en-us/office/block-a-mail-sender-b29fd867-cac9-40d8-aed1-659e06a706e4
For Outlook for Mac:
And for Outlook Web Access:
Related articles
Need help?
Contact the IST Service Desk online or 519-888-4567 ext. 44357.
Article feedback
If you’d like to share any feedback about this article, please let us know.