What happens if you select create a new mail message, click on To..., select the contact list containing the DL in the " show names from the:" box, right click the DL and select properties, can you now edit it?
Can you save part of the list using save as following the instructions in the article; http://support.microsoft.com/kb/238569/en-us. If you broke this particular list into three parts, can you now edit using the regular path in Outlook? ----- Original Message ----- From: Miller Bonnie L. To: MS-Exchange Admin Issues Sent: Friday, December 18, 2009 1:51 PM Subject: Can't open this item. There is not enough memory available on the Microsoft Exchange Server Have a user that is getting this error when they try to open a distribution list they created a last February which is within their contacts in their Server mailbox. Client is Outlook 2007 SP2 non-cached mode, server is Exchange 2007 SP1 RU9, all roles. Found this for Exchange 2003: http://support.microsoft.com/kb/894530 and we can open the DL in OWA. I used category view in Outlook to discover the DL is 29kb, which is almost double the size allowed. So, I'm thinking of telling this person they need to use OWA to break the list up into at least three separate groups of names. But, to prevent this from happening in the future, can I add the same reg entry that is listed in the above Exchange 2003 article to prevent the problem from re-occurring? I'm not seeing a 2007 version of this KB, so my thought is the reg entry might just need to be created? Thanks, -Bonnie
