I’m looking to register users without requiring confirmation of their emails (and even better, no password when they register). Basically, I want them to subscribe their mails using wp registration process and then redirect to a page of my choice.

I know I can do it with CF7, or a newsletter plugin or whatever, but I actually need to use the default registration process because it connects to another plugin which uses it, and the UX flow is as follows:

user enter mails --> user gets redirected to thank you page with a ref code (provided by plugin). 

It’s as simple as this, yet couldn’t find the answer and I was searching for hours.

Any help really appreciated!