> -----Original Message-----
> From: exim-users-bounces@??? [mailto:exim-users-bounces@exim.org] On Behalf Of Dave Lugo
> Sent: Tuesday, March 01, 2011 11:17 AM
> To: exim-users@???
> Subject: Re: [exim] Rejecting messages with no "To:" or "Cc:" field in the headers
>
> >> The RFCs require From only, so something that doesn't have a
> >> From is not a valid email and you'd be fine to toss it.
> >
> > I thought the only RFC required header was Message-ID: ?
>
> rfcs 5322 and 2822 seem to say From and Date.
Sorry, that's right; Date is also required.
We've been dealing with this in the DKIM working group a lot because there's a perceived attack in which more than one From is present, which is why I forgot about Date (i.e., it's not as interesting).
