On 02/02/2017 10:06, Jeremy Harris wrote:
>> On 02/02/17 11:16, Alan Hicks wrote:
>>> On 02/02/17 03:02, Ian Zimmerman wrote:
>>>> The haskell.org mailing lists seem to be set up for this, for example
>>>> haskell-cafe@???. But the From: rewriting only happens for
>>>> messages from domains with restrictive DMARC policies. The rest of the
>>>> list messages (most of them, for now) are unaffected.
>>>>
>>>> If we switch to From: rewriting on exim-users, can we *please* do it
>>>> that way, too?
>>>
>>> Maybe we should also insert body text, on the grounds that few people
>>> read headers beyond a brief glance at From: and Subject:
>>>
>>> Something like
>>>
>>> WARNING: the original sender's explicit wishes that their messages
>>> not be sent with their name on from any other source machine but
>>> their own, had to be accomodated by this mailing list by rewriting
>>> the From: header. As such, readers may not be able to reply directly
>>> to the sender.
>>>
>> That's a bit extreme, distracting, and punishes those who care about
>> authentication.
>> Something generic such as
>> 'Mailing list on behalf of Xx Yy <list@???>'
>> may be helpful.
>>
>> Then adding a Reply-To: header
>>
>> Sympa mailing list also tackles this http://www.sympa.org/manual/dmarc
>>
>
> Ignoring their expressed wishes silently is surely worse.
>
It's distracting and inaccurate. They are not saying don't use their
name. After an email is signed, if the email is changed it's no longer
valid. It's up to the sender to send and sign any amended email.