We have mailbox limits in our Exchange 2003 organisation set at 10MB for message sizes.
So I assume if someone tries to send a 11MB attachment, it will be bounced back by that user's Exch server.
However, if someone tries to attach a 100MB, it will still (theortically) go to Exchange and then be rejected.
Couple of questions;
a) Does the message size affect transaction log generation proportionately? I mean, will a 100MB attachment generate more transaction logs than a 1MB attachment?
b) If a user tries to send a 100Mb attachment, more than likely their Outlook 2003/2007 will crash. Is there anyway that we can configure Outlook/ Exchange to prevent the file from even being attached if it's more than 10MB? Or do we have to wait for the message to get to Exchange (also taking up bandwidth), before Exchange rejects it?