SOGO是一个非常快速和可扩展性的群组软件。它提供日历、地址簿管理和一个全功能的电子邮件客户端的资源共享和权限管理。它能够建立标准文件（IMAP、CalDAV、CardDAV等），提供了Microsoft Outlook、Apple iCal、iPhone、Mozilla Lightning和很多移动设备的同步本地连接（无插件）。它可以重复使用任何现有的电子邮件和数据库的基础设施，避免长时间的网站重组。
SOGo 1.3.8版本更新日志：
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- [Apple iPhone OS] No sync of new contacts (ludovic) - 已解决.
- [Backend Calendar] Calendar synchronization doesn't work with Thunderbird-2.x (ludovic) - 已解决.
- [Web Calendar] SOGo should not accept empty calendar name (francis) - 已解决.
- [Backend Calendar] Periodic nightly event won't be shown in day/week-view when it is on Sunday (francis) - 已解决.
- [Backend Calendar] SOGo writes DATETIME format in EXDATE for all-day events (francis) - 已解决.
- [Web Address Book] Empty members creating list on address book (francis) - 已解决.
- [Web Preferences] Sieve settings (ludovic) - 已解决.
- [Web Calendar] time range of event, free/busy (ludovic) - 已解决.
- [Web Administration] Manage all sieve filters (ludovic) - 已解决.
- [Web Mail] Empty folders when using a Yahoo Mail account (ludovic) - 已解决.
- [Web Preferences] German Translation PreferencesUI/Mailfilter is a little bit confusing (ludovic) - 已解决.
- [Web Mail] Not possible to read Content-Transfer-Encoding: binary in web GUI (ludovic) - 已解决.
- [Web Calendar] Select a calendar with Chromium (francis) - 已解决.
- [Backend General] bindAsCurrentUser doesn't work using indirect binds (ludovic) - 已解决.
- [SOPE] stringByDeletingLastPathComponent must not be used with URLs (ludovic) - 已解决.
- [Web Preferences] Sieve filter 'reject' generates incorrect script on single-line messages (ludovic) - 已解决.
- [Web Preferences] Mailbox share ACLs - parse of IMAP GETACL fails if name contains a space (ludovic) - 已解决.
- [Web Preferences] Mailbox share ACLs - implement groups (ludovic) - 已解决.
- [Backend Calendar] Reschedule meeting from external user causes SOGo to generate mail FROM the external user (ludovic) - 已解决.
- [Web Calendar] reschedule meeting problem (ludovic) - 已解决.
- [Backend General] remove useless header include in NSString+Utilities.m (ludovic) - 已解决.
- [Web Calendar] DURATION not properly set when changing existing event to all-day event (ludovic) - 已解决.
- [SOPE] SOPE does not compile on Debian ARM platform (ludovic) - 已解决.
- [Web Address Book] Import of exported LDIF don't work with Umlauts (ludovic) - 已解决.
- [SOPE] Sogo restart fails during log rotate (ludovic) - 已解决.
- [SOPE] fix header inclusion in UnixSignalHandler.h (ludovic) - 已解决.
- [Backend General] -f parameter to hostname may not be known on some OS (ludovic) - 已解决.
- [Backend General] On OpenBSD there is no -lcrypt (ludovic) - 已解决.
- [SOPE] WOHTTPURLHandle.m doesn't implement cachedHandleForURL (ludovic) - 已解决.
- [Web Calendar] Exact to the minute events are displayed incorrectly (francis) - 已解决.
- [Web Mail] This email won't be correctly displayed (ludovic) - 已解决.
- [Web Calendar] time zone in Webinterface (ludovic) - 已解决.
- [Backend Calendar] iPhone title edit causes calendar shift (ludovic) - 已解决.
- [Backend General] No libmemcached2 provided for Debian Lenny (jraby) - 已解决.
- [SOPE] specific mail crashes sogo in SOPE NGMimeRFC822DateHeaderFieldParser (ludovic) - 已解决.
- [SOPE] OpenBSD does have strndup(3) (ludovic) - 已解决.
- [Web Address Book] Contact synchronization WebGUI -> Thunderbird - 已关闭.
- [Web Mail] Group discussion by thread - 已关闭.
- [Web Mail] IMAP-Sharedfolder - Naming incorrect - 已关闭.
下载地址：
http://www.sogo.nu/files/downloads/SOGo/Sources/SOGo-1.3.8.tar.gz