Add "Always Log" whitelist for Email Integrations => Log and Track
In addition to (or as an alternative option to) the "Never Log" option (Preferences => Integrations => Email Integrations => Log and Track), please add an "Always Log" option to whitelist a list of select email addresses and domains. Another useful option would be to have a flag to "Only log existing contacts", meaning any contact that isn't already in HubSpot contacts would not be tracked.
My use case is that I use one gmail account for personal use as well as business (using a separate email address), and only want to turn on "Log and Track" for business emails and not for personal emails. I could add my entire personal email addressbook to the "Never Log" list, but that has a limit of 100 addresses or domains.