Hi,
substrate.office.com is a CNAME for outlook.office.com
The Office substrate is a critical part of enabling services that run across different applications like Exchange Online, SharePoint Online, Teams, and so on.
This domain is not malicious and is not spyware or adaware.
Hi, substrate.office.com is a CNAME for outlook.office.com The Office substrate is a critical part of enabling services that run across different applications like Exchange Online, SharePoint Online, Teams, and so on.
This domain is not malicious and is not spyware or adaware.