Hi. I'm working on some mail filtering software that will work with
nmh. I've noticed a few conflicts between the way messages are stored
in folders and RFC822. I figure that y'all know something about this,
so just wanted to check to make sure that this is really the case and
that it isn't a problem or might be a problem in the future.
1. RFC822 says that header fields end with a CR-LF pair. That might
be true on a Microsoft system but not on Linux of any of the other
UNIX-like systems. Single CR or LF characters are allowed in
header field-bodies. Does this ever occur in real life or might
it happen some day?
2. RFC822 allows the NUL character in header field-bodies. Code
written around the C string functions won't handle this of course.
Does this ever occur in real life or might it happen some day?
Now, I recognize that this stuff is sort of covered by the NETWORK-SPECIFIC
TRANSFORMATIONS section of RFC822 but I have trouble believing that any
*NIX mail system actually does it. Is this true?
Thanks,
Jon Steinhart
