From iNetPrivacy Software:
Firewall Terminator / Anonymizer. Connect to Newsgroups, FTP, IRC, ICQ and Email (POP/IMAP) even if you are behind a firewall blocking access to these programs/protocols. AntiFirewall will penetrate the firewall and connect to the Internet address of your choice, making it possible for you to read and post to News and use FTP, IRC, ICQ from behind the firewall. Anonymize your connections to Newsgroups, FTP, IRC, ICQ and Email (POP/IMAP). Talk safely to perfect strangers: the destination computers won't know your true IP address (it will be replaced by a different address, which they won't be able to trace back to your company or home computer). All standard programs for FTP/IRC/News/ICQ/Email connections are supported.