Script Email Verifier

Avg Bid (USD)
Project Budget (USD)
$30 - $150

Project Description:
I am looking for a developer who can develop a script to check if it exists or not e-mail addresses of any email provider public o private.

Basically a site like (ask me)

The script must be developed to market the service to third customers. I want a panel to add users and limit the number of emails that can be verified by month or by day.

The script must be able to export the "good" emails and export the "bad" emails.

Must you have experience at this and tell me if providers like (Hotmail, Yahoo, Gmail, AOL, Terra, etc) can block the IP for too many requests and if so, how to avoid this? can have multiple IPs?

Maximum budget for this 150$ USD.

Skills required:
Email Marketing, Javascript, Linux, PHP, Script Install
About the employer:
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