Method attribute is not updating itself even though I'm clearly assigning a different value to it

Upon updating a value, the __init__ method still uses the old attribute value.

class Email:
    def __init__(self, name):
        self.name = name
        self.email = self.name + "@hotmail.com"

    def details(self):
        return f'{self.name} | {self.email}'

person = Email("James")
print(person.details())

person.name = "Michael"
print(person.details())

Output gotten:

James | James@hotmail.com
Michael | James@hotmail.com

Output expected:

James | James@hotmail.com
Michael | Michael@hotmail.com

What am I doing wrong?

from Method attribute is not updating itself even though I'm clearly assigning a different value to it