[Mailman-Users] DMARC issues
Mark Sapiro
mark at msapiro.net
Fri Apr 11 02:25:16 CEST 2014
On 04/10/2014 07:25 AM, Joseph Brennan wrote:
>
> They're breaking RFC 822 / 5322.
>
> The "From:" field specifies the author(s) of the message,
> that is, the mailbox(es) of the person(s) or system(s) responsible
> for the writing of the message. [...]
> In all cases, the "From:" field SHOULD NOT contain any mailbox that
> does not belong to the author(s) of the message.
>
> I don't think we should compound that by changing the From line.
Several others have made relevant replies while I was on the plane to
Montreal, registering for PyCon, attending the opening reception ...
Anyway, I wanted to say I agree completely with the above even though
the DMARC community does not. That's why I implemented the option in
2.1.16 to wrap the original post as a message/rfc822 part attached to a
new message from the list.
Unfortunately, when I actually turned this on in response to Yahoo's
change in DMARC policy, I got complaints from users of Apple iOS iThings
that their mail clients do not deal well with this message, so I
reluctantly went the non-compliant mung the From: way.
Yesterday I wrote a brief FAQ on this which is at
<http://wiki.list.org/x/ggARAQ>.
--
Mark Sapiro <mark at msapiro.net> The highway is for gamblers,
San Francisco Bay Area, California better use your sense - B. Dylan
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