Preventing iCloud from syncing internet accounts in OS X Mavericks
I have an email account that I wish to add to only one computer.
Unfortunately when I create the account, iCloud automatically syncs it with my other machines.
Any way to prevent it from doing that?
iCloud syncs Internet Accounts through the Keychain. You can disable Internet Accounts syncing by disabling the Keychain service in System Preferences → iCloud.