I believe it was because the group has to be universal for the membership to be in a GC, which got around issues of missing messages for non-universal groups. This first started in E2K7 IIRC.
From: Sobey, Richard A [mailto:r.so...@imperial.ac.uk] Sent: 07 February 2011 17:35 To: MS-Exchange Admin Issues Subject: Universal vs Global groups in Exchange 2010 Can someone remind me why Exchange 2010 [SP1] is so picky about groups being configured as Universal vs Global? Unless groups are Universal, we are now finding that Outlook users cannot modify DL membership. We're a single domain/single forest/Exchange 2007/2010 mixed environment. Googling this topic only brings up the fix, not the why. Cheers! Richard --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist
