A sales rep at my company has been using the Marketo Sales Insights plugin to track emails to and from prospects/customers. He noticed recently with a few different individuals that whenever he opens an email that he sent to those prospects, Marketo is tracking that as an "Opened" activity within the Marketo Sales Insights widget in SFDC under those leads/contacts.
Has anyone else ever had this problem? Is there a way to correct it? I'd hate for him to have incorrect open/sent stats due to this incorrect tracking.