> -----Original Message-----
> From: Ian Eiloart [mailto:iane@suss...]
> Sent: Monday, October 24, 2011 7:24 AM
> To: Murray S. Kucherawy
> Cc: mailman-developers@pyth... > Subject: Re: [Mailman-Developers] New RFC on using DKIM with MLMs
> > Isn't "hide" a function of the MUA, not the MLM or MTA?
> No. "Display" or "Expose" might be a function of the MUA. "Find" might
> be something that the user does. To hide something is to put it in a
> location where it's unlikely to be found.
> As long as you know that people aren't looking there (and they're not),
> putting information in a header (other than to, from subject and date)
> is "hiding".
My point is that if using header fields is the right way to encode this information in a protocol sense, then the issue is really that the MUAs need to expose that information somehow.