Forte Agent is a multi-server newsreader. Agent is also an excellent multiple POP and SMTP e-mail client. This high level of integration between Usenet news and POP e-mail separates Agent from all other communication products. Whether you are downloading binaries or responding to e-mail, Agent provides you with all the right features. Has HTML support, image preview, and crosspost improvements. Version 4.2/32.1118 includes support for NZB files.
Editor's review of Forte Agent

Once you get past the confusion caused by the multipaned interface, this multiserver newsgroup reader offers plenty of robust features for reading posts and sending and reading e-mails. The download was a bit slow for our tastes, but the app installed quickly and offers a wizard-like setup feature to help any level user configure its connections. Forte Agent's interface presents a number of panes that may stymie novices, but the Help guide is thorough and includes a tutorial on configuring the interface according to user preferences.

In our tests, Forte Agent downloaded groups and headers quickly. Selecting posts to read was simple, although we found that retrieving a selected message was a bit clunky. Forte Agent is a passable e-mail client, though it offers no more bells and whistles than other dedicated e-mail programs. After you figure things out, this app is a worthwhile choice for anyone interested in a full-featured newsgroup reader.