I'm setting up a new computer and wanted to get my email contacts from 10.6.8 to 10.8.5 in Apple mail. I exported the mailboxes and I set up the accounts already... but no contacts show up when emailing. I tried copying the plist, but doesn't do anything. Will I have to copy the whole mail folder? I didn't want to muck this up since I already imported the mailboxes and set up the accounts?
If you're talking about the people that appear because they're previous recipients…
You can move these people by selection them from the Previous Recipients list (Window → Previous Recipients) then Add to Contacts.