 Netscape Mail & Newsgroups features support for relevant protocols such as IMAP, POP3 and SMTP, a built-in Bayesian spam filter, support for multiple accounts, etc.Initially its development was overseen in-house, but following AOL's purchase of Netscape in 1998, its codebase development was handed over to the Mozilla Foundation, originally initiated by Netscape, and therefore became based upon the Mozilla Mail & Newsgroups component of the open-source Mozilla Application Suite.Mozilla ceased development of the suite between 2004 and 2006 in favour of stand-alone applications, and as a consequence Netscape's series of suites were also discontinued.