We can see from this knowledge base article whereby it states that Never Log setting works for one-to-one emails sent from a connected personal email with the HubSpot Sales extension or add-in, or from the CRM directly. It does not apply to emails sent to a shared inbox as HubSpot sees it as conversational email.
It would be nice if the HS team could expand on these parameters to include the option to exclude automatically creating contacts via shared inboxes into the conversations inboxes as the never-log settings don't account for this. Alternatively, if the ability to have a feature to "never create contacts" from a specific domain/IP it could also solve the issue
