Phoronix has just posted a new article on Mozilla Thunderbird v1.5 Public BETA 1

Unlike most weeks, the past few days were filled with prominent open-source software releases. All of the hype had begun with the release of GNOME 2.12, which was accompanied by the GNOME-based Foresight, GNOPPIX, and Ubuntu (5.10 Preview) releases. Next up, the Firefox 1.5 Beta 1, which encompassed a great deal of improvements, welcomed Mozilla fans and following the browser release, Mozilla Thunderbird 1.5 Beta 1 became available for download. Among the various improvements, the Thunderbird mail client now supports inline spell checking, phising detector, Podcasting and RSS improvements, and integration with server side spam filtering. Today, we have our usual slew of new snapshots from Mozilla Thunderbird 1.5 Beta 1 to visually document some of these many updates.

Mozilla Thunderbird v1.5 Public BETA 1