Juyin Halitta na GNOME (tsohon Juyin Juyin Halitta na Novell da Juyin Halittar Ximian, kafin zuwan Novell ta 2003 na Ximian) shine babban manajan bayanan sirri na GNOME. Ya kasance wani yanki na hukuma na GNOME tun lokacin da aka haɗa Juyin Halitta 2.0 tare da sakin GNOME 2.8 a cikin Satumba 2004. Yana haɗa imel, littafin adireshi, kalanda, jerin ɗawainiya da fasalulluka na ɗaukar rubutu. Ayyukan mai amfani da shi yana kama da Microsoft Outlook. Juyin Halitta software ce kyauta mai lasisi a ƙarƙashin sharuɗɗan GNU Lesser General Public License (LGPL).