Hi Common Thank you for posting on Microsoft Community. I will be happy to help. I am a user just like you and only trying to advice/ assist in a best possible way I could resolve your issue.
I understand your concern about your main email bean exposed and here's a comprehensive response addressing your concerns about email-checker.net:
Website Safety:
While email-checker.net has a mixed reputation, it's not widely recognized as a reputable source for email verification. Exercise caution. The website uses HTTPS, a basic security protocol, but it doesn't guarantee full protection. Review their privacy policy to understand how they collect, use, and store data. Be wary of websites with vague or unclear policies.
Entering Emails for Validation: Even without clicking "Check," websites can potentially collect information entered into forms.
Finding Your Main Email: It's unlikely that they could directly link the entered email to your main email without additional information or actions on your part. If you've used both emails on other websites or services, it's possible to make connections through data analysis.
Best Practices: Use trusted email validation services with strong reputations and transparent privacy practices. Avoid entering sensitive information into unfamiliar websites. Carefully read privacy policies to understand data handling practices. Explore privacy-focused email validation tools that emphasize data protection. For testing purposes, create temporary, disposable email addresses to protect your primary email.
In your specific case: Since you didn't click "Check," the risk of your email being validated or linked to your main email is relatively low. Be vigilant for any suspicious emails or activity targeting the email you entered. Remember: Prioritize vigilance and data protection when using online services.
Kind regards and compliments of the season. -Adedayo