Abstract: Disclosed are various embodiments, implemented in one or more computing devices, for filtering objectionable content from messages prior to transmission of the messages to recipients. A message is obtained for which a sender seeks to transmit, via a network, to one or more recipients. An examination is determined that is to be performed upon the message, where the examination is selected from among a set of available examinations. An action is initiated for the message, where the action is determined based upon a result of the examination. The action includes at least one of: transmitting the message to the recipients, requesting the sender to review the message, modifying the message, and deleting the message.