Re: Nightmare? was unsubscribe

Andrew,

On Tue, Nov 21, 2017 at 12:50 PM, Andrew Sullivan <ajs(at)crankycanuck(dot)ca> wrote:
> Hi,
>
> On Tue, Nov 21, 2017 at 12:44:48PM -0600, Igor Korot wrote:
>> Why people who performed the change couldn't create a mail template
>> where the "Subscribe/Unsubscribe"
>> links would be visible at the bottom of the e-mail?
>
> That would change the body of the mail. Mail that is DKIM signed (or
> worse conforms to DMARC) cannot be so changed, or it will fail
> validation and will be bounced. The bouncing system is then doing the
> correct thing, and yet it will create "excessive bounces" to the list,
> which will cause the _validating_ user to become a problem on the
> list. Users don't control their mail server validation policies, so
> lists have to conform. Tom Lane explained this upthread somewhere.
>
> If you think this is all the consequence of having something like <20
> (or <5, depending on how you count) important email services in the
> universe, plus "everybody else", you're right.

But then... How all other lists doing so?
I do subscribe to few and almost all have a links at the bottom of the email.

I don't have a mailer and use WebMail from Gmail and it nicely
displays those links.
But nothing is displayed in the latest PG list threads.

Thank you.

>
> A
>
>
> --
> Andrew Sullivan
> ajs(at)crankycanuck(dot)ca
>