Philip Guenther wrote:
Folding of long header lines (as described in [IMAIL] 2.2.3) is
removed prior to interpretation of the data. The folding syntax (the
CRLF that ends a line plus any leading whitespace at the beginning of
the next line that indicates folding) are interpreted as if they were
a single space.
Hmmm, that last paragraph actually differs from RFC 2822, section 2.2.3,
Unfolding is accomplished by simply removing any CRLF
that is immediately followed by WSP.
I.e., the leading whitespace should *not* be treated as a single space
but rather be left as is. Unless I hear screams, I'm going to remove
the sentence that starts "The folding syntax..." as conflicting.
RFC 2822, section 3.2.3 also contains:
Runs of FWS, comment or CFWS that occur between lexical tokens in a
structured field header are semantically interpreted as a single