Know how to do this for a single email but we often have multiple interactions and want to keep the discussion in one thread while still tracking the individual clicks/opens of each specific email in the thread.
I do not think you can track this using Salesforce emails.
I'm not sure if you have Sales Insight, but if so, I recommend moving templatized emails into Marketo and utilizing Sales Insight for reps to send them. If you have the Outlook plug-in, a rep can send an email and track it via Marketo, even if it's not a Marketo template.
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