Check the contact information and making sure it's from a legitimate source.

If you're still unsure about the legitimacy of the letter, you may want to consult with a lawyer who specializes in data privacy and scraping laws. They can review the letter and advise you on the appropriate steps to take.

In general, scraping data from websites without permission can be illegal, and it's important to understand the relevant laws and terms of service before proceeding. If you're unsure about whether your website is compliant, you may want to consider seeking legal advice or modifying your scraping as to not arouse suspicion.
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