I think this ties in with my Yahoo Groups email header parsing problem
where scan can't deal with incorrectly formed header lines.
Different layers; your problem was with the input routines (header parsing).
Valdis's problem was with the output routines (specifically, format library).
The headers of his message were parsed fine.
1) Make command processing more robust.
2) Validate header upon incorporation.
I'm all for that ... but it just brings up some sticky issues. Like if
you have a header which is not valid, then what, exactly, should you
do about it?
I think it would be great to make all commands a bit more robust when
dealing with errors like this, but it seems to me that having some kind
of header validation/correction at the beginning of the process would
help avoid these problems. I took a quick look at inc.c, and it appears
someone was already working on massaging the "From" line, but that code
block is commented out.
I'm looking at inc.c and I'm not seeing the code you mention; can you point
me to it?
Should we have a standalone header validation program that is only run
for cases like this or should it be some kind of subroutine that can be
called by other commands?
David Levine already wrote mhfixmsg; it occurs to me that this might be
a good candidate for that.
P.S. this will show my lack of familiarity with nmh code (so far), but
do we care about RFC 5335 compliance at all?
I have not yet seen a message/global MIME type in the wild. When we start
seeing them I think we should care. Are people seeing these messages?
It looks like RFC 5335 was superceded by RFC 6532. The other part of this
is RFC 6531, which defines SMTPUTF8. A quick perusal of larger email
providers (gmail, yahoo) does NOT show support for SMTPUTF8. And I'm
not really looking forward to implementing RFC 5504. So I think we
can safely punt on this for now. I think the changes should be minimal,
though ... we just convert everything from UTF-8 to the native character
set during the output routines (this only applies to RFC 6532).
--Ken
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