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Post by account_disabled on Nov 23, 2023 8:41:11 GMT
IP address; part of the IP address; IPv6 address. When a subscription occurs from items on the blacklist, it is blocked. To help you with this list, you can check with DomainChecker.org. On this site you can enter an email address, domain or IP address and see if it has been added to a blacklist. The riddle Here is a method similar to captcha, which however does not involve connection to particular external services. It is a field with a sort of riddle, very very simple, but impossible for bots to solve. The user is asked to solve a very simple mathematical Special Data operation or to answer a question to which everyone knows the answer. The field is mandatory, so the registration request will be sent only if this answer is correct. Som e WordPress form creation plugins have already included this feature , including WPForms. To use it, you need to have the Pro version of the plugin and its Captcha add-on. Then insert the Captcha element to your forms and select from the settings what type of question you want to add. Double opt-in One of the most effective methods both to prevent spam registrations and to protect subscribers is the double opt-in, i.e. a double registration confirmation. Double opt-in consists of these steps: a user enters their email address in the registration form; at this stage, the user is not yet added to the list; the newsletter service sends an email to this address, asking you to click on a link to confirm; the user clicks on the link; the user is added to the list.
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