How to send affiliate links through your e-mail newsletter?

Question

Email

There is a landing page with a subscription form
Partners send traffic to this landing page
The visitor subscribes to the newsletter - receives a series of letters - buys goods It is
necessary to take into account which partner the visitor bought the goods
from

Answer 1

If you mean, is it possible to personalize links by users and insert user id or partner id into them - then yes, you can, no one forbids this, as long as the mailing is otherwise correct and suits users. You can generally make all links in all letters unique and even generate a unique letter for each user with a unique set of products, links and anything.
If you mean inserting links to partner sites, then in general, no one forbids this either, but you need to understand that if the sites you link to have a bad reputation, this can lead to delivery problems or drag your own reputation.