EAS Proxy Server

Hi all, I have a problem with EAS Proxy.


I configure once on Azure and i set the Instance SSL (bind port 55443) to comunicate with gsuite mail.

When i try to connect i receive the error in the log as attachedEASProxy.log


The error row said: "ERROR OutboundHandler_EAS_Google - Exception on channel -958041404 remoteAddr: null localAddr: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target"


All traffic is open from outside to the port 55443 of the Public ip of the VM

Could you help me?