In <05CEF691-1F80-11D9-B65A-000A95B17A80(_at_)gmx(_dot_)de> Martin Trautmann
<csa(_at_)gmx(_dot_)de> writes:
PS: There should not be a Newsgroups: header when sending your email.
Atleast this MUA is thinking it is a newsgroup article when replying.
On the other hand you HAVE to set Newsgroups when you do e.g. a
followup while you send a Cc per email.
And in that case the Newsgroups header needs to be left in the mailed
version so that the recipient of the mail is aware that it was also
posted, and to which group(s).
So a Dual-Use User Agent needs some better way to determine whether the
message in hand is an email message or a news article. The proper way to
do this is to keep track of where it got it from. If it arrived by NNTP
from a news-server, then it was a news article; if it arrived via SMTP or
from a message store which obtained it from SMTP, then it is an email
message. If an Agent is setting out to be for "dual-use" between two
media, then it behoves it to know which medium it is handling at any given
moment.
And if it absolutely MUST guess which medium it is from examination of the
message, then a better discriminator would be the presence or absence of a
Return-Path header, of a "^From " line.
--
Charles H. Lindsey ---------At Home, doing my own thing------------------------
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