Paul Overell wrote:
RFC2822 has
[...]
| item-value = 1*angle-addr / addr-spec /
| atom / domain / msg-id
So in RFC2822 an item-value can be an atom, which
covers the cases given elsewhere by Bill McQuillan
in this thread
[...]
[2821 <String>]
No need to remove it, as it is already consistent
with RFC2822.
Maybe not exactly, 2821bis-01 says:
| String = Atom / Quoted-string
With <Quoted-String> you get <qcontent>, that again
can contain <qtext> (e.g. raw unescaped NO-WS-CTLs)
or <quoted-pair>s '\\' and '\"' plus other redundant
<quoted-pair>s (i.e. unnecessary backslashes).
"String" should be retained for consistency with
RFC2822 and compatibility with current usage.
Maybe replacing <String> by <Atom> is acceptable (?)
Frank