If you are studying email domain distribution, you can download public datasets (e.g., the Enron corpus or Common Crawl email extraction) and run:
grep "yahoo.com" emails_2022.txt | grep -v "gmail.com" | grep -v "hotmail.com" > yahoo_only_2022.txt
The best service among Yahoo Mail, Gmail, and Outlook.com (formerly Hotmail) largely depends on the user's specific needs, including their ecosystem (Google, Microsoft, Yahoo), desired features (storage, security, integrations), and personal preferences regarding interface and functionalities. As of 2022, Gmail and Outlook.com tend to lead in terms of features, security, and integration capabilities, but Yahoo Mail still offers a viable and user-friendly option for basic email needs.
If you are searching for these files (for legitimate research, such as recovering your own old data or checking for leaks), here is where they likely originated:
