In <v04210116b5681ebb99de(_at_)[130(_dot_)237(_dot_)150(_dot_)138]> Jacob Palme
<jpalme(_at_)dsv(_dot_)su(_dot_)se> writes:
RFC 2156 defines importance as:
importance = "low" / "normal" / "high"
and priority as:
priority = "normal" / "non-urgent" / "urgent"
The difference between these fields is not very clear
from RFC 2156, but in X.400, priority is an envelope
attribute, while importance is a heading attribute,
so presumably priority is meant to be able to influence
transmission. Existing Internet mailers, however, only
seem to use these attributes in local mailers. Mail
transmission today is so fast, that priority in
transmission is probably not felt very much needed.
What about the existing Precedance header, which is sometimes used? Is it
defined in any RFC? I observe that it does seem to have levels below
normal, such as "bulk" and "junk". Also, is there any use of such a header
for saying "this is so unimportant that I do not want you to bother to
tell me if it fails to get delivered"? I am frequently annoyed by systems
that are on some mailing list and tell everyone who posts to the list that
their message was not received :-( .
--
Charles H. Lindsey ---------At Home, doing my own thing------------------------
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