I am using Exchange2010 rollup5 with windows server08 r2, when i post a new appointment with 15MB attachment in the public folder's calender, it prompt the message "A Rule in this public folder prevents a message this large from being posted ". I've updated the Maximium item size to 60000kb in Organization Configuration and also the individual public folder in Pulbic Folder Management Console, but shill got the error. Is that any things i have missing to config?

Are there any rules in that folder that maybe forward the message? ALso, when you change the size limit, there is usually a delay before the cache kicks in, so try again if its been a few hours.

Hello, There are a lot of settings to limit the attachment size. You can run the following command to check them: Transport level: =========== Get-sendconnector |FL Get-receiveconnector |FL Database level =========== Get-publicfolder |FL Thanks, Simon

I've not set any forwarding rule in the exchange and both sendconnector, receiverconnector and publicfolder message size are set to 50MB few days ago, but still got that problem

Hello, I suggest we also check the other settings, such as the limitation of the user mailbox, which is discussed in the following article: http://www.msexchange.org/articles-tutorials/exchange-server-2007/management-administration/exchange-2007-message-size-limits.html Thanks, Simon