Dear customers!
CleanTalk has expanded the functions of personal blacklists.
We’ve just added a support in your private blacklists to block separate IP networks.
This will allow you to use the service to block IP networks that use spammers. Very often spammers buy servers from hosting companies or virtual servers and use them to send a spam. So, your website hasn’t to receive a comments/registrations from hosting IPs because a real people never use their IPs. There can be only XML-PRC requests but it is not important because this protocol is using for other attacks such as brute-force and DDoS via XML-RPC pingbacks.
The instruction of how to add entries to your personal blacklists can be found here:
https://cleantalk.org/help/I-want-to-block-ip
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Country Blocking. How to block access to your site from certain countries.
Additional factors for estimating spam activity of IP/Email addresses in Anti-Spam/Anti-Fraud API
Validation of Email Addresses for Protection Against Spam Bots on the Website
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