search

crazy-max / WindowsSpyBlocker

Block spying and tracking on Windows
https://crazymax.dev/WindowsSpyBlocker/
MIT License
4.61k stars 359 forks source link

Microsoft Exchange #127

Closed CaptainFrosty closed 5 years ago

CaptainFrosty commented 5 years ago

Behaviour

Not sure if you are aware, but the NCSI settings appear to break access to Microsoft Exchange servers, at least on Outlook 2016.

Steps to reproduce this issue

  1. Application of NCSI settings (no firewall rules)

Rules used

Opening key SYSTEM\CurrentControlSet\Services\NlaSvc\Parameters\Internet...OK! Getting reg value of ActiveWebProbeHost...OK! Getting reg value of ActiveWebProbePath...OK! Getting reg value of ActiveWebProbeContent...OK! Getting reg value of ActiveWebProbeHostV6...OK! Getting reg value of ActiveWebProbePathV6...OK! Getting reg value of ActiveWebProbeContentV6...OK! Getting reg value of ActiveDnsProbeHost...OK! Getting reg value of ActiveDnsProbeContent...OK! Getting reg value of ActiveDnsProbeHostV6...OK! Getting reg value of ActiveDnsProbeContentV6...OK!

Configuration

Country (ex. United-States) : US

Operating system (ex. Windows 10 Pro 64 bits) : 10 Home x64

crazy-max commented 5 years ago

Yeah this seems linked to #128

Atavic commented 5 years ago

The exact name of Windows NCSI is Network Connectivity Status Indicator, see: https://blog.superuser.com/2011/05/16/windows-7-network-awareness/

crazy-max commented 5 years ago

@Atavic https://github.com/crazy-max/WindowsSpyBlocker/wiki/miscFAQ#what-is-ncsi-

crazy-max commented 5 years ago

@CaptainFrosty NCSI configuration seems ok. If Outlook relies on NCSI probes to check connectivity, maybe it compares these probes with hardcoded values inside Outlook. Can you try to disable NCSI through Group Policy and tell me if Outlook works ?