Yeah that is just script kiddies or bots. I seriously doubt that Hillary had a firewall appliance - I wonder if she was even using NATing. Has there been anything published on her server configuration? Since it is an email server, I suspect it had more than just a port or two open (e.g. posts for SMPT, POP3, IMAP, TLS/SSL, EWS, CalDev, RDS, etc.).