Welcome to the Community @Peter____Jones.
Are you able to ecport emails from Pipedrive into a CSV? It’s a bit cumbersome, but you can take a CSV with columns like Email body, Email direction (INBOUND/OUTBOUND), Activity date, and contact identifiers (Email or Record ID). Then in HubSpot’s imports, select Contacts, then Emails as the activity type.
There’s also the “Transfer Your Data” smart transfer in the import tool, and Pipedrive is an option. I haven’t used that, but it did catch my eye.
And I found this YouTube video that says you can now import past emails: https://www.youtube.com/watch?v=YZ4H_PPdUxs&t=3s (I did not test this, just wanted to share, as importing emails has been a request for a long time and I thought I’d read that it was now possible.)
Hope that helps!