[Discuss] DMARC issue, Yahoo and beyond

[Richard Pieri]

Derek Martin wrote:
> Here's why it IS thoughtless: You're talking about the general case of
> lists setting the reply-to header to the *list* address.  I'm talking
> about setting it to the *sender's* address.  The former is very bad,
> for the reasons you suggest.  The latter has NONE of the effects you
> described.

You did not read what I wrote:
>> When set to the original author it breaks reply to list
>> and reply to all functions in those same programs.


> Moreover, if your "good mail programs" obey the correct headers
> (List-Post and/or Mail-Followup-To), which all of the clients you 
> named do AFAIK, then setting reply-to has *absolutely no effect* on
> list-reply functionality, ever.

You are incorrect. When the Reply-To field is set then all replies use
the Reply-To field contents for the new To field. This is unexpected
when reply to list would otherwise use the list's address. This is
unexpected when reply to all would otherwise use all addresses in the
original From and To fields.

-- 
Rich P.