Startup Idea : One email just for one real person

Problem:
Commercial websites struggle to prevent users from creating multiple accounts with different email addresses to take advantage of free demos or promotions.
This can lead to inaccurate user data, wasted resources, and security risks.
Solution:
Develop an email service that allows one real person to have only one email address.
This email address would be used to verify the user's identity and prevent them from creating multiple accounts.
The service would be easy to set up and use, and it would be available globally.
Benefits:
Commercial websites would be able to prevent users from creating multiple accounts, which would lead to more accurate user data, reduced wasted resources, and improved security.
Users would have a single email address that they could use to access all of their online accounts, which would make it easier for them to manage their online presence.
The service would be a valuable tool for businesses of all sizes, and it would have the potential to revolutionize the way that people interact with the internet.
Target Market:
Commercial websites of all sizes
Businesses that offer online services
Individuals who want to manage their online presence more effectively
Marketing Plan:
Develop a website and marketing materials to promote the service.
Partner with other businesses to offer the service to their customers.
Attend industry events and conferences to network with potential customers.
Use social media and online advertising to reach a wider audience.
Financial Plan:
The service would be offered on a subscription basis, with different pricing tiers for different features and levels of support.
The revenue generated from subscriptions would be used to cover the costs of developing and maintaining the service, as well as to generate a profit.
Conclusion:
The development of an email service that allows one real person to have only one email address has the potential to revolutionize the way that people interact with the internet.
The service would be a valuable tool for businesses of all sizes, and it would have the potential to generate significant revenue.