home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.mail.headers
- Path: sparky!uunet!paladin.american.edu!howland.reston.ans.net!usc!cs.utexas.edu!torn!nott!uotcsi2!revcan!geovision!news
- From: news@geovision.gvc.com (News Administrator)
- Subject: Re: Mail vs. News headers - What's the diff?
- Message-ID: <C19KwL.2w5@geovision.gvc.com>
- Reply-To: pt@compass.gvc.com
- Organization: Not officially GeoVision Systems Inc., Ottawa, Ontario
- References: <1303@alsys1.aecom.yu.edu>
- Date: Fri, 22 Jan 1993 16:38:44 GMT
- Lines: 31
-
- manaster@yu1.yu.edu (Chaim Manaster) writes:
- >Can someone tell me if there is any significant differences between
- >headers on email items and usenet postingd?
- I'm no expert, but as part of my experience gatewaying a mailing list to a
- newsgroup, I've heard people complain that their mailer crapped out on
- certain news headers. However, reading RFC-822, it appears to me that
- mailers are _required_ to accept the possiblity that mail might have new
- headers that this particular mailer doesn't know about.
-
- I'm sure Henry Spencer or somebody of that calibre could give a more
- definitive answer. However, the section of RFC-822 that I may be
- misinterpreting looks like:
-
- Individual users of network mail are free to define and
- use additional header fields. Such fields must have names
- which are not already used in the current specification or in
- any definitions of extension-fields, and the overall syntax of
- these user-defined-fields must conform to this specification's
- rules for delimiting and folding fields. Due to the
- extension-field publishing process, the name of a user-
- defined-field may be pre-empted
-
- Note: The prefatory string "X-" will never be used in the
- names of Extension-fields. This provides user-defined
- fields with a protected set of names.
-
- Thus, I think that any mailer that chokes on headers it doesn't understand,
- rather than ignoring them, is in violation of RFC-822.
- --
- I'm the News Administrator at this site, and you're not!
- I just administer the news, I don't make or state policy.
-