Listen to podcasts shared with you on Mac
When someone shares podcasts with you using the Messages app 
, you can easily find them in Shared with You in Podcasts. (Podcasts must be selected in Shared with You settings in Messages.)
Go to the Podcasts app
on your Mac.Click Home in the sidebar.
Scroll down to the Shared with You section, then do any of the following:
Play the episode: Hold the pointer over the show or episode shared with you, then click
.View show or episode details: Click the title link to the right of the show or episode.
Reply to the sender in Messages: Click the name of the person who shared the show or episode.
The Messages app opens and is ready for you to type a response. See Send an inline reply to a message.
Copy the link to the show or episode: Control-click the show or episode, then choose Copy Link.
Share the show or episode: Control-click the show or episode, then choose Share.
Remove the show or episode from the Shared with You section: Control-click the show or episode, then choose Remove.
To learn more about how Podcasts protects your information and lets you choose what you share, choose Help > About Apple Podcasts & Privacy.