Hsphere now supports CentOS 4 and 4.1 with the release of their patch 2.4.3 Patch 1

http://www.psoft.net/HSdocumentation...hp?v=243p1&p=r

As well as Psoft has released their latest patch : 2.4.3 Patch 2 which includes updated hsphere-mail-service-3-7 with important fixes, in particular, in mail quota settings and many more fixes.

http://www.psoft.net/HSdocumentation...hp?v=243p2&p=r