[BUG] [ANCHOR: BE PYTHON] Invalid domain part allowed in email during Registration

[emmanuellaomoregie]

Description

During user registration, the local part of the email is properly validated, as well as the domain part, but any extra character addition to the domain part is allowed(not properly validated) for example [[email protected]] is currently allowed.

Acceptance Criteria

• Given an email with an incorrectly formatted domain part (e.g., [email protected]), the registration process should reject the email and display an appropriate error message.
• The updated validation logic should allow emails with correctly formatted domain parts (e.g., [email protected]).
• The system should prevent registration with any email that does not conform to standard email format rules

Purpose

Ensure that email validation during user registration correctly detects and rejects invalid domain formats.

Requirements

• Modify the existing email validation logic to detect and reject any email addresses with repeated or extra characters in the domain part.
• Implement a check to ensure that the domain part of the email ends with a valid domain (e.g., .com, .net, .org) and does not contain any additional or repeated domain suffixes.
• Update the error messages to provide clear feedback when an invalid domain format is detected during registration.

Expected Outcome

The registration process should reject any email addresses with invalid domain formats

###Screenshots of the error
ENTERED [[email protected] DURING REGISTRATION

SERVER ALLOWED REGISTRATION