Imagine this scenario: A user goes on maternity leave for three months, but before she goes she creates an auto-reply rule for all incoming messages. At first glance, this seems like a viable solution—that is, until her mailbox becomes completely jammed with more than two million auto-reply messages that over-tax the server and crash the application.
The problem: With a manual auto-reply rule such as this, other auto-reply senders, such as a fax machine, can create an infinite loop of back-and-forth auto-replies.
To avoid this Groundhog Day scenario, use the Out of Office Assistant to setup auto-reply messages. In Outlook, navigate to File > Info > Automatic Replies (Out of Office) and tailor the provided settings to your needs.