How to use List ID in Yandex?

Question

Email Marketing

The Yandex.Post Office recommendations say:
Add the "List-id" field to messages.
This is necessary in order to view statistics for each letter, even if they are the same.
I would like to understand where exactly to put this identifier when performing the mailing?
Should it be visible to users, or should it be included in some kind of meta tag when making up the newsletter?
In general, if I am sending out useful material without the prior consent of users (articles about business), is it worth highlighting my domain in Yandex using this service and its capabilities?

Answer 1

in the header of the letter, something like this should be the header of the letter

.....
To: [email protected]
Subject: =?UTF-8?Q?Habr?=
List-Id: =?UTF-8?Q?999?=
From: [email protected]
....

For ZendF2, about the following. way

$message = new \Zend\Mail\Message();
.....
$message->getHeaders()->addHeaderLine('List-id', $id);
....

And it will be visible to everyone who wants to pokapatsya in the headlines pisma.
For mailings, Yandex is very convenient and + a trusted source (DKIM)