With this plugin you can easily block your store against unwanted registrations: Simply write the e-mail addresses that should not register not to register with each other and save the settings. Already no customer accounts can be created for the Customer accounts can be created.

You can do the same with names and company names – simply enter names/company names in the plugin settings and customers in question will be excluded from registration. 

And if there are many similar names or addresses from the same domain? Then block simply the whole areas! Enter simply with the enamels “.*@example.com” and already no one with a @example.com address can register with you anymore. register with you. With the names you can enter analog “Mar.*”, and neither Mark, nor Marc, Marius nor Marcel will be able to register in your store.

The system uses so called regular expressions, so it is possible to exclude other Combinations are excluded, up to whole Top level Domains: Enter “.*@.*.ru” and already no one can register with an e-mail address from Russia can register with you.

However, this system is very powerful and must be used carefully: An entry “E.*” in the “Company” field will prevent the registration of all company names that start with the letter E. 

Supplement: With the update 3.0.3 you can also check the zip code. For this purpose, a free text field was added in the basic settings at the respective country. This can be found in each case next to the pen for editing the country, as a separate icon.

Explanation for checking the German zip code:

([0]{1}[1-9]{1}|[1-9]{1}[0-9]{1})[0-9]{3}
If the ZIP code starts with a 0 AND has a 1 through 9 as the second digit OR if it starts with a 1 through 9 AND then has a 0 through 9 AND the remaining three digits also have a 0 through 9, all is well.