Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!usc!apple!agate!shelby!morrow.stanford.edu!elaine49.stanford.edu!mpyoung From: mpyoung@elaine49.stanford.edu (M. Pinghua Young) Newsgroups: comp.mail.misc Subject: Re: Procedure for adding headers? Message-ID: <1990Nov21.095143.16696@morrow.stanford.edu> Date: 21 Nov 90 09:51:43 GMT References: <1990Nov21.003144.4755@Think.COM> <3235@exodus.Eng.Sun.COM> <1990Nov21.084347.25984@Think.COM> Sender: news@morrow.stanford.edu (UNIX News Service) Organization: Graduate School of Business, Stanford University, CA Lines: 34 In article <1990Nov21.084347.25984@Think.COM> barmar@think.com (Barry Margolin) writes: >In article <3235@exodus.Eng.Sun.COM> argv@turnpike.Eng.Sun.COM (Dan Heller) writes: >>In article barmar@think.com (Barry Margolin) writes: >... >>RFC822 (I think) specifies the Precedence: header that can be set to >>things like "junk" to indicate that if the mail can't be delivered, >>drop it on the floor (don't bother sending a mailer daemon). There >>are other values that are used to indicate high-volume mailing lists >>and things, but these are rarely used (in fact, all I've ever seen >>is "junk" :-). Admittedly, I should know more about this . > >I can't find the Precedence field in RFC822. Look it up in UNIX installation guide for sendmail. In addition to junk (which has a numeric value of -100), the precedence can also be set to bulk (-60), first-class (0, this is the default), special-delivery (100). All these work under sendmail. A side note: you can also specify a header of "Returned-Receipt-To: ", in which case the receiving sendmail will generate a receipt automatically to the e-mail address specified in that field. Another header which is mostly used in mailing list is called "Errors-To:". If this is present, any error messages will be delivered to the specified address in addition to the sender. Useful (obviously) for maintaining a mailing list. --Pinghua -- +---------------------------------------------------------------------------+ | M. Pinghua Young, P. O. Box 7886 | Bitnet: pinghua@suwatson.BITNET | | Stanford, CA 94309, (415)497-4510 | Internet: mpyoung@portia.Stanford.EDU | +---------------------------------------------------------------------------+