In general, auto-replies are a good thing, as it can let a sender know if you are out-of-the-office. Auto-replies for a shared mailbox are also a good thing, in that they help to guide users to self-help materials or simply to let them know when they can expect an answer.
However, auto-replies turn into a nightmare if the sender has an auto reply himself which replies to every incoming message. Usually, mail-servers

