To remove all UserHeaders enter the following Terminal.app command: defaults delete ~/Library/Containers//Data/Library/Preferences/. To set a Disposition-Notification-To header via UserHeaders enter the following Terminal.app command: defaults write ~/Library/Containers//Data/Library/Preferences/ UserHeaders '' To view existing UserHeaders enter the following Terminal.app command: defaults read ~/Library/Containers//Data/Library/Preferences/ UserHeaders I'd display what you have then delete it. You can control how mail responds to "Disposition-Notification-To" via commands or an app Mail will always echo back your message to the sender. Īs far as I know, you cannot change how mail responds inbound "Return-Receipt-To".
Free email for the mac with read reciepts install#
, see below, or install Mail Receipt which is a free macOS application that adds delivery notification and read receipt requests to your e-mails. To control, Disposition-Notification-To, you may use terminal comments document on this web page With those turned on for a specific email you would get yourself an email saying 'the person X received the email successfully. For Outlook theres generally some option like 'read/received receipts' (I think thats what theyre usually called). Could be used to tell if your work computer was powered on and mail app running.ĭisposition-Notification-To This asks for what you did with the email. Lets say you are sending a really important file and you want to make sure the other person gets it. macOS 10.10.5 I see this as a minor privacy issue in most circumstances.
I was surprised that mail responded by sending the original message back to me. Return-Receipt-To This is asking for a verification that the mail got to your inbox. There are two header tags related to receipts:
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