Outlook 2010 mode of operation and greater information processing

Outlook is running in online mode, when a user adds an attachment in the message, Outlook will immediately send attachments to the server. However, the user clicks "send"before, Outlook does not submit the information to the server. By that time, the server willdetect the size of the information to determine whether it exceeds the size limit of the mailbox information, if exceeded, an error is returned to outlook 2010. Exchange will not createa non-delivery report (NDR), because it did not accept the delivery of information.

When Outlook is running in Exchange cached mode (or off-line mode), once a connection is available,download outlook 2010  will the information, including information content and all attachments,are uploaded to the server. Meanwhile, the server checks whether the in form ationexceeds the size limit size, but the server does not reject the information has been submitted. Therefore, the server will generate a non-delivery report together with the original information.

These two approaches is clearly inconsistent. If you use Exchange cached modesometimes, and sometimes use the online mode, then they are likely to have no reason tohave different Outlook's performance into question. To make Outlook No matter whichmode is in response to the same, you can install these two patches: one for Exchange Server 2010 when installed after the two patches, Outlook in all operating modes will bemade ​​under the same reaction: when users submit information at large, Outlook will querythe server prior to its submission to submit information on the size limit. If the informationexceeds the maximum size limit, Outlook will report an error, and the information will remain on the user's Outbox.