As a Google GSuite client, when using outlook I had to install the GSuite Sync. Every time I try to send an e-mail the Outlook 2016 at Windows 8, the mail client crashs and at the restart it report as a GPGOL problem and disable it.
To test, i create two profiles, one by using the Sync and other by using the manual configuration. Every e-mail sent by the one with Sync crashs the outlook (deterministic), and every e-mail sent by the one without the sync works correctly. I beleave that there is some inconsistence into GSuite Sync with GPGOL.