Remove read receipts on Mac Mail

To Set, check or remove Read receipts on Mac Mail:-
 
Open terminal :-
 
Adjust this command to suit your requirements copy and paste into terminal then press enter :- 
 
defaults write com.apple.mail UserHeaders '{"Return-Receipt-To" = "your_email@somewhere.com"; "Disposition-Notification-To" = "your_email@somewhere.com"; }’
 
Copy the above command and paste it into terminal and click enter.
 
 
To check read receipt status, copy and paste this command in terminal , press enter:- 
 
 
defaults read com.apple.mail UserHeaders
 
 
 
To remove read receipt from Mac Mail, copy and paste this command in terminal and press enter.:-
 
defaults delete com.apple.mail UserHeaders
 
 
 
Regards.
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