IP Question thank you?

Question

If I send an email to a friend using Yahoo Email. When that person receives my email and clicks on a link(That I sent her). Will Yahoo Server IP shows or will her own IP provider shows? I appreciate your time, I am bad when it comes to networking and I need to respect some TOS Adsense rules in that regard. Thanks again.

Answer 1

When you have a link in your e-mail, it will not change regardless of what mail provider she uses or you use. It is like sending a mail through your postal service and inside the mail you wrote down an address, your postal service will definitely not open the mail, and change the address.

If your question is when she clicks on the link, what IP address will the webserver that serves that page see? Then it will be hers.