This issue was resolved in an update released by Microsoft in late June and applied to the Exchange servers on 7/1/2007. Messages that arrived post 7/1/2007 will display correctly in Outlook 2003. Messages that arrived pre 7/1/2007 may still require the workaround listed in the FAQs section.

While the central Exchange servers are configured to allow attachments up to 50 MB in size, problems have been encountered in some instances when large attachments are sent from an Entourage e-mail client. This issue can cause a user's Entourage client to "hang" and/or the message not being successfully sent. Also, when the problem occurs, server side monitoring tools indicate an increased load on the server hosting a user's mailbox. Until this issue is resolved, workarounds include either using Outlook Web Access or an Outlook client on a PC to send large attachments. If you are currently experiencing this problem, please restart your computer and delete the large message from your outbox in Entourage before attempting to use either of the workarounds.

This problem occurs for users who login to their PCs using a child domain account and use Outlook 2007 (Outlook 2003 does not exhibit the same problem) as their e-mail client. As a result of this issue with Outlook 2007 and the inclusion of additional settings not available in Outlook 2003, we recommend that users utilize the tools available from Outlook Web Access (OWA) to set out of office settings in all instances. The out of office settings are available in OWA by clicking Options > Out of Office Assistant. This issue is also mentioned in the FAQs section of this site.

Calendar sharing permissions granted to users who are marked as a delegate for a room or equipment resource in Exchange are reset to "Editor" whenever the resource is updated via the Resource Coordinator Tools. In most cases, this change isn't noticeable to an end user because "Editor" permissions generally allow a person to do everything they need to do on a given calendar - including adding, modifying, and deleting meetings and appointments. Permission settings for users not acting as a delegate for the resource calendar are not affected.

If a person or distribution list has been granted at least the "Free/Busy time, subject, location" privelege (a different set of permissions is available when sharing a calendar from an Outlook 2003 client versus an Outlook 2007 client) for another user's calendar, the user would expect to see details for the shared calendar when viewing the calendar in a group view or while using the Scheduling Assistant. However, if the user is logged into a PC with a child domain account and is using Outlook 2007, occupied time slots are blocked out but details do not appear. The workaround is to grant the “Default” user the “Free/Busy time, subject, location” permission on the Calendar Permissions tab of the shared calendar - note that this will allow all Exchange users the ability to see the time, subject, and location details for the calendar being shared. Alternatively, users can login to their PCs with their eID (rather than a child domain account) or us the "RunAs" command to launch Outlook with their eID credentials.

As a result of the US and Canadian governments' decision to extend the observed dates of daylight saving time starting in 2007, calendar appointments between 3/11-4/1 and 10/28-11/4 may appear an hour off - either an hour early or late depending upon how the meeting was scheduled and on what device it is being viewed. Please visit http://help.mail.colostate.edu/ki_timezones.aspx for more details regarding this issue along with steps to correct misplaced meetings and howto update computers and devices to prevent future problems.

Evolution (a popular e-mail client for Unix/Linux) cannot connect to central Exchange when the server type is set to "Exchange". Unix/Linux users can access central Exchange using Outlook Web Access.