Our SME 7.x box apparently had a "problem" last evening. Sometime around 6:30pm, the "orders" account suddenly stopped getting email. That account happens to have a consistent stream of mail coming to it -- so it indicates that either the entire server stopped receiving or that account did.
My question is this: Given the above knowledge, where would I go to check for "lost" emails for that account? Also, what log file should I be looking in to indicate what happened?