The Mail program in Lion (Mac OS X v. 10.7) has a handy new “Conversation” view which shows messages in one long view, with extraneous quotations stripped out. The resulting appearance is a lot like a web-based forum.
By default, Mail only shows messages that are in the currently selected mailbox. (For example, your Inbox or Sent box, etc.) Luckily this can be changed:
- Go to the Mail menu
- Click on Preferences…
- Click on Viewing
- Under the View conversations header, check the box labeled Include related conversations
Now all messages will be included even if they are in a different mailbox, similar to Gmail or Sparrow
