An e-mail message that is larger than the sending message size limit or the receiving message size limit is not delivered

This problem plagued us for the last couple of days. One of our vendors sent us a 11 MB Acrobat catalog as an attachment to a regular email message and Microsoft’s Exchange was not letting it through. I thought that the personal sending and receiving limits would override the global limits. This would allow a few people to receive large attachments. Microsoft’s KB 28572 set me straight.

These global settings affect all Exchange recipients. If a recipient has configured their own personal sending or receiving message size limits, the global message size limits override the individual message size limits of the mailbox.