We highly recommend to exclude all traffic to Microsoft 365 from proxy usage. For more details, please have a look at Microsoft's network connectivity principles.
However, KONNEKT is using the proxy settings of the Windows OS. If a proxy server is set, KONNEKT will use this proxy server.
In detail, KONNEKT calls
WinHttpGetProxyForUrlwith the URI
https://graph.microsoft.comto examine, if a proxy must be used.
To bypass your proxy server with traffic from KONNEKT, please make sure, that Windows OS will exclude the URI
https://graph.microsoft.comfrom proxy usage.
You may do this by putting this URI on the exclude-list in your proxy PAC file.
You should also make sure, that the KONNEKT client can reach Azure AD and SharePoint Online without being interfered by proxy servers or other application layer gateways (ALG).
KONNEKT can use proxy servers. But we offer limited support for clients that are experiencing network connectivity related issues, while connecting to Microsoft 365 via proxy server or other application layer gateways (ALG).