"This memo makes recommendations for software that automatically responds to incoming electronic mail messages@ including ""out of the office"" or ""vacation"" response generators@ mail filtering software@ email-based information services@ and other automatic responders. The purpose of these recommendations is to discourage undesirable behavior which is caused or aggravated by such software@ to encourage uniform behavior (where appropriate) among automatic mail responders@ and to clear up some sources of confusion among implementors of automatic email responders."