Disable GAL for EWS account

Is it possible to disable the global address list (GAL) for EWS (Exchange Web Services) accounts? I only see GAL entries when I type in the “TO” box but I’m in a large organization where this is undesirable behavior. I would like to only see contacts that I have emailed and/or exist in my contact list. I am connecting with Office 365 using EWS and am using EMClient v7.1.30794.0

It seems nobody has an answer for you Pranav. The best option is for you to open a support ticket through Pro Support, and they will be able to answer your question without delay.