Email Authentication is completed.

Fixes

Fixes #[issue number] by @[issue author]

[ ] My pull request has a descriptive title (not a vague title like Update index.md).
[ ] My pull request targets the default branch of the repository (main or master).
[ ] My commit messages follow best practices.
[ ] My code follows the established code style of the repository.
[ ] I added or updated tests for the changes I made (if applicable).
[ ] I added or updated documentation (if applicable).
[ ] I tried running the project locally and verified that there are no visible errors.