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Re: DKIM: c=simple is aspirational

2005-07-17 22:01:12


On July 17, 2005 at 17:08, domainkeys-feedbackbase02(_at_)yahoo(_dot_)com 
wrote:

I don't know whether Ned is of the view that it *should* be excised or
whether
it can be re-cast to alleviate his concerns in terms of defaults, advice
to
implementers, nomenclature implications and so on.

I believe simple should be there, but it is too simplistic.
Line folding in headers and normalization of header field names
to lowercase should be done to preserve the semantics of RFC-2822.

Along with that, specific recommendations should be added when
"simple" is the choice algorithm.  For example, the message should
be formatted/encoded according to the MIME specification to insure
safe transport.  This includes converting all entities into
7bit, using quoted-printable and/or base64 to achieve this.

For entities where the original data contains trailing whitespace,
the entity should be converted to quoted-printable.  For example:

  Here is a line with some extra spaces at the end  =20

And lines that start with "From " should cause the entity to
be CTE'ed in quoted-printable:

  From=20 here to eternity.

To avoid the potential of intermediate systems from escaping
the "From " by prefixing it with a ">".


I am in complete agreement with all of these suggesions.

                                Ned


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