mailbox temporarily full

From: Dan Peterson (
Date: 04/27/04

Date: 27 Apr 2004 15:32:59 -0700

Some, but not all, of our mac users running entourage cannot send mail
with attachments. They get an error message: "Mail could not be sent
using the account "<username>" Mail error. The mailbox is temporarily
full; try again later. Error 5552

Office 10.1.5
Mac OS 10.3.3

Exchange 2003

Any ideas if this is a server side or client side issue?

Dan Peterson