How to Send Read Receipts to Specific Contact in Messages for Mac
Read Receipts in iMessage allow the sender of a message to know when a recipient has received it, and both the Mac OS and iOS Messages apps support this feature when communicating with other iMessage users. But many Mac users don’t want to send Read Receipts to everyone, and with the latest versions of Mac OS you can now selectively choose who to send read receipts to. In practice, this is basically the same as turning on Read Receipts for specific contacts on iPhone and iPad, except it applies to reading and sending iMessages from the Messages app on the Mac.