Windows 10: Getting read receipt in WLM even when recipient says no to request

I have Windows Live Mail set to automatically request read receipts. Recently I have been getting such receipts even when the recipient selects No in response to the request! The wording of the receipt is "Your message to ...was read on..." If the recipient selects Yes, I get two receipts, one worded as just described and one saying "This is a receipt for the email message you sent to.... This receipt verifies that the message has been displayed on the recipient's computer..."
Can anyone explain the reason behind this rather odd situation, please?

:)

 

how do I know if my sent emailis been read

Some email applications have the ability to send a 'read receipt' when a recipient opens the email. Not all mail applications have this feature, however, and those that do usually allow the recipient to ignore the request and not send a read receipt.

 

How do i request a read receipt in windows 10 mail app?

Start a new email.

Click Options

Select Request a Delivery receipt and/or Request a Read receipt

OR

File, Options, Mail, scroll to Tracking Section and set either/both as default.

Applies to ribbon versions of Outlook, earlier versions had the same options but found elsewhere.