Separate "Tracking" and "Read Receipts"
Can you separate those features - currently they are linked - it's all or nothing?
Other tools (like Cirrus Insights) allow you to track opens, fwds, and clicks without included a "request read receipt".
As a salesperson, I don't like forcing people to click a read receipt - I think it's rude and intrusive.
I do, however, really like to know, covertly, if they have read my message (and how many times) and if they have fwd'd it.