G-Suite App Sync Setup With SafeSquid

G-Suite App Sync Setup With SafeSquid

Problem Statement

I am using G Suite Sync App to Configure G Suite Account on Microsoft Outlook. This Application is Available for Windows7, Windows 10
I have Installed SafeSquid (SAB) and Enabled Proxy-Authentication. But I am not able to Sync G Suite Account and facing Authentication Issue.

Solution

G Suite Application as such does not have Proxy Settings. But it can fetch Proxy Settings and Proxy Authentication Credentials from IE-Internet Explorer Browser [System wide Proxy Settings].
Apparently, the Problem that you were facing was,
When you do the Setup of MS Outlook using G Suite Sync APP, the Application Connects to the Google Mail Server and authenticates the user account.
Since Proxy Settings are done on IE-Internet Explorer Browser, the G Suite Sync App will use the Proxy Server [SafeSquid-SWG] to reach out Google Mail Server.
At the time of making a Connection to the Proxy, the application should send a Proxy-Authorization Header containing the Proxy-Authentication Credentials.But it was not doing so.
We Did some dig around the Application and found that it does fetches Proxy-Authentication Credentials from IE-Internet Explorer Browser and can Produce that at time of Proxy Authentication. This Worked fine in Windows 10.
Apparently, it could not do the same in Windows 7 OS.
To use the G Suite Sync App, we need to bypass it from Proxy-Authentication.
STEP 1:
[NOTE: In SafeSquid we can Identify an application using its User-Agent. Since the G Suite Application is not sending any User-Agent at the Time of Connect Request. So, we have to Add it to Unidentified Application]
Identify the FQDN that the Application is Trying to Visit and create a Request-Type
Select configure to GSuite App Sync Setup With SafeSquid
Select custom setting to GSuite App Sync Setup With SafeSquid
Select Request type to GSuite App Sync Setup With SafeSquid
Save the policy of GSuite App Sync Setup With SafeSquid
After Saving it, It Looks like this as shown below
Policy of GSuite App Sync Setup With SafeSquid
STEP 2: Create a Profile under Policies and Profiles Section (Restriction Policies > Access Profiles)
Create a Profile under Policies and Profiles Section of GSuite App Sync Setup With SafeSquid 
Profile under Policies and Profiles Section of GSuite App Sync Setup With SafeSquid
This is how it looks after saving
Policy of GSuite App Sync Setup With SafeSquid




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