Re: Another issue: quoting

    To be quirks-compatible with software that does make a distinction  
    between different forms of the same local-part, I'd recommend the  
    following:

That doesn't necessarily sound like a bad idea, but my original reason
for raising this issue was based on a misunderstanding of RFC822.

So this raises the question, do we believe that there are
implementations out there that have quirks we need to work around.  Do
we have any idea what the quirks are?

   -roy