Hubspot doesn't provide the capability to manage access to specific teams for emails.
For example: If User x is in Team A and User y is in Team B. When User x logs into Hubspot and goes to Marketing -> Emails - User x should be able to see emails sent by Team A but looks like there is no way to control this. When User x tries to use More filters -> asnd chose Team A , User x still sees all the teams emails .
Current workaround looks like, Super admin has to go to individual emails and then asign teams to those emails which is a complex process.