when I email a client (google) I’d like this email to show up in their activity.
Hi @corey 
Welcome to the community we are excited to see you here 
I am not entirely sure what you mean by that, would you like to update an item (related to that client) once you receive an email from that specific client?
If so, that might be possible through Zapier, as we do not have any native email integrations just yet - but that should change in the near future 
Cheers 
you can create a ZAPIER internal email and send it to an infinity board
If you put a client name in the email you can filter on it.