Ralf Hildebrandt:
> * Wietse Venema <wie...@porcupine.org>:
>
> > > But Exchange forgets the "" and just encodes
> > > L?stn?me, Firstn?me
> > > instead of
> > > "L?stn?me, Firstn?me"
> > >
> > > thus the quoted-string encapsulation is wrong?!
> >
> > RFC822..RFC5322 do not need quotes around text inside the
> > =?iso-8859-1?Q?stuff?=, as long as there are no spaces. That
> > was an explicit design choice.
Actually spaces are OK.
> So what IS the correct way?
>
> if (space or special characters in realname)
> return encode(add_quotes(realname))
> else
> return realname
The rules for display names are in RFC*22. Look for the ABNF for
display-name, phrase, word, and atom.
Short answer: as long as =?iso-8859-1?Q?stuff?= looks like an
RFC2822 atom, it needs no quoting.
Wietse
