Automatic content-type insertion
robm at fastmail.fm
Thu Dec 26 18:42:51 EST 2002
> > I'm just wondering why cyrus automatically adds a content type charset
> > every message, even if none is specified in the message itself. For
> > example:
> > So there's no "Content-Type" line in the message, but the bodystructure
> > has given it an implicit charset of us-ascii. Now, I know that this is
> > technically true, but unfortunately, there seem to be quite a few broken
> > iso-2022-jp messages out there which don't actually specify the charset
> > the header. What we allow on our site is a 'default charset', which is
> > used if no charset is available, which would work fine in this
> > Unfortunately in this case, there's no indication that the ("CHARSET"
> > "us-ascii") response was auto-generated, rather than explicitly set.
> It does this because that's what the IMAP spec says to do. Section 7.4.2:
> > BODYSTRUCTURE
> > A parenthesized list that describes the [MIME-IMB] body
> > structure of a message. This is computed by the server by
> > parsing the [MIME-IMB] header fields, defaulting various fields
> > as necessary.
> > The main solutions I see are:
> > 1. Remove the implicit setting of the charset if none supplied
'defaulting various fields as necessary' seems an awfully broad statement.
Where does it specify which fields should be defaulted?
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