Re: [EAI] double angle brackets

[Ernie Dainow <edainow at ca.afilias.info>]

John C Klensin wrote:
> --On Tuesday, September 08, 2009 16:51 +0000 Shawn Steele
> <Shawn.Steele at microsoft.com> wrote:
>
>   
> > > To replace double angle brackets for the Sender, John Klensin
> > > proposed  using multiple From fields. SM amended this with
> > > Reply-To to specify the  preferred address, as in
> > >         From: EAI-addr, ASCII-addr
> > >         Reply-To: EAI-addr
> > > where the EAI-addr gets dropped in Downgrade.
> > >       
> > I'd imagine that "something" isn't going to be happy with 2
> > addresses.
> >     
>
> Right.  In particular, there are a lot of systems that do not
> support multiple-address From:, multiple-address Reply-to:, or
> both.
>
>   
I don't think it's important if a lot of existing systems do not support 
multiple from addresses.  As non-EAI systems they would only receive 
downgraded messages, which have only a single From address and no Reply-To.

EAI systems, which will receive multiple From addresses, would have to 
support it since it would be part of the EAI spec.

   -Ernie Dainow