In a new Exchange 2013 deployment I am trying to understand my options for Spam/AV Filtering for email. I have read that there is a feature on the Exchange 2013 Mailbox server role that will catch spam. I also read that Microsoft offers a cloud based spam filtering/av scanner service for purchase. Exchange 2010 Edge Transport server appears to be an option yet too. I also know there are many 3rd party tools that can be utilized as well.
Are my research results for my options above correct? Are there any other options I am missing.
How good of a spam filter tool comes with the Exchange 2013 mailbox role?