HubSpot currently does not persist sales email template metadata (template ID or template name) on individual email engagement records. As a result, it is impossible to report on sales email performance split by both template and sales rep using native reports, custom report builder, exports, or the HubSpot API.
Sales Content Analytics can show performance by template or by user, but these dimensions cannot be combined. Once a sales email is sent, the resulting engagement record contains no reference to the originating template, preventing downstream analysis in HubSpot, BI tools, or data warehouses.