Log in as Adobe Sign admin and go to Account > Account settings > Security Settings.
Allowing access only to the users who are authenticating from the Systems from set IP ranges.
Adobe Sign Interface
You can add Allowed IP Ranges in the account settings. This option allows authentication to the Adobe Sign application only when the request comes from the specified IP addresses. Following are the steps to set up IP ranges:
Log in as Adobe Sign admin and go to Account > Account settings > Security Settings.
Scroll down to Allowed IP ranges. Select the 'Only allow access to the system from IP addresses that are listed below' check box, and click '+'.
Enter IP range and click Save.
It displays the IP range in the list.
You can add another by clicking + icon. Once done click Save.
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