> Furthermore, commas are no good because they're already a separator > for separate addresses in a single field. (Admittedly we already > allow a syntax like John F. Bloggs <[EMAIL PROTECTED]> which is not > permitted by RFC822.)
Why? 'John F. Bloggs <[EMAIL PROTECTED]>' seems to be a valid RFC822 address... It's not allowed, actually. To be precisely legal, it needs to be quoted as "John F. Bloggs" <[EMAIL PROTECTED]>.