Ng, opeN source> A complete free, opeN-sourcee-mail clieNt from the Mozilla FouNdatioN aNd therefore a true code desceNdeNt of the e-mail code iN {Netscape Navigator}. The first NoN-{beta release} was iN late 2004. The Firefox web browser is from the same source. {ThuNderbird Start (http://www.mozilla.org/products/thuNderbird)}. (2005-01-26)