A simple script that posts imput from STDIN to a news server. Easily configurable, doesn't require any external programs, can be used in batch jobs. Unlike rnews does not require a msgid, as it presumes it will be generated by the news server.
nymproxy is a set of tools for using mixmaster remailers. It provides pseudonym support to a variety of mail programs via sendmail wrappers (for MUAs such a mutt) and SMTP/POP3 proxies (for programs such as Outlook).