I'm currently setting up a POC test SBS2011 server.
The main purpose of this server is to bring about 20 external email accounts in house so I have a lot more control over them.
We already have a exchange server for our company, however the power that be want these mailboxes to run off a separate server and domain, hence why I've decided on SBS2011.
Now on our company exchange server we use Mail-Marshal for our spam and AV protection and its working fairly well. However, before I finalize the POC I would like to look at some alternatives to Mail-Marshal.
One thing I would like if its at all possible is that with MailMarshal there is a spam management interface that your can delete or release emails which are flagged. I need that same ability with the alternative solution, but what I would ultimately like is that each mailbox user had the ability to remotely access this interface for their mail only.
So please feel free to through your ideas and experiences into the ring