[Mailman-Developers] Signaling One-Click Functionality for List Email Headers

[John Levine]

In article <fd7f775f-c294-9924-2aba-b08388439df4 at msapiro.net> you write:
>On 05/10/2017 12:18 PM, John Levine wrote:
>> In article <20170510133609.61fba76f at subdivisions.wooz.org> you write:
>>> I probably need more convincing that it would actually be used out in the
>>> field, ...
>> 
>> Gmail's already implemented it.  I'm pretty sure Yahoo is also planning to.
>
>Are you saying Google Groups and maybe Yahoo Groups are adding the
>headers or their web mail clients are/will be supporting it?

The latter.  If you mark something as junk in the gmail client and it
has the appropriate headers, Gmail will offer the option to
unsubscribe, and that'll be one-click.  Remember that this is mostly
intended for bulk advertising mail which gets reported as spam all the
time.

>I agree with Barry that personalization is not the big performance hit
>it once was, but there are admins that don't want to enable Mailman's
>VERP or allow personalization because they think it is.

Then they can't use one-click, either.  Their loss.

Speaking of Gmail, they tell me they're now adding ARC headers on
mail forwarded through Google Groups and looking at ARC when making
spam filtering decisions.

>I'm still concerned that mainstream MUAs including web mail clients
>won't support it for some time if ever.

Like I said, Gmail supports it now.

R's,
John