Without using auto response, can I tell if sent item was opened?

A

Always Learning

All the envelopes in my 'sent' view pane are opened .. even those going to
persons outside the company. Is there a way, without using the delivery
confirmation feature, to ascertain if someone within the company has opened
my mail?
 
S

Sue Mosher [MVP-Outlook]

No. Outlook has no way of gathering such information from other user's mail programs.
 
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