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- Newsgroups: comp.sys.next.misc
- Path: sparky!uunet!haven.umd.edu!ni.umd.edu!sayshell.umd.edu!louie
- From: louie@sayshell.umd.edu (Louis A. Mamakos)
- Subject: Re: The "receipt" from NeXTmail
- Message-ID: <1992Sep9.125711.16452@ni.umd.edu>
- Sender: usenet@ni.umd.edu (USENET News System)
- Nntp-Posting-Host: sayshell.umd.edu
- Organization: University of Maryland, College Park
- References: <2050@ltb.ltb.bso.nl>
- Date: Wed, 9 Sep 1992 12:57:11 GMT
- Lines: 36
-
- In article <2050@ltb.ltb.bso.nl> wierda@ltb.ltb.bso.nl (Gerben Wierda) writes:
- >As I recall, under 2.1 the NeXTmailer just looks for "NeXTmail 1.63RR"
- >somewhere in the header and decides upon the RR (return receipt) that it has
- >to return an acknowledge.
-
- It seems to me that it would have been cleaner if NeXT had just inserted
- another header line, rather than mucking about with a comment.
-
- >I have seen "Return-Receipt-To: name@address" also. That seems a logical
- >extension to the mail protocol. Is NeXTmail under 3.0 doing this, or doing the
- >old thing (backward compatibel) or doing both? Looks handy to have that
- >working for other mailprogramns too.
-
- Gack! This RR thing is such a kludge! I'd had to see it propagated
- to other mail UAs. Much better to use another header line and attempt
- to get consensus on that.
-
- "Return-Receipt-To:" is a different matter. "Return-Receipt-To:" is a
- non-standard extension to RFC-822 which is implemented by the sendmail
- MTA. It causes a message to be returned when the message is
- *received* by the host and dropped into a user's mailbox.
-
- The intent of the NeXT "RR" feature is to return a message when the
- user actually *reads* the message.
-
- Neither of these mechanisms can be depended on in the general case; if
- a host your are sending mail to doesn't use sendmail, it won't do
- anything with the Return-Receipt-To: header line. If the user your
- are sending a mail message to doesn't use the NeXT Mail.app program to
- read his message, then no return recept will be returned when the
- message is read. For instance, I use MH rather than NeXT's Mail.app
- to read mail on my NeXT.
-
- Also, some have found it rude to have their mail UA return an
- acknowledgement automatically when a message is read, and have patched
- their Mail.app to inhibit this behavior.
-