making user enter verification code before joining a mailing list

A client wants users to have to enter a confirmation code after they sign up for a mailing list/being added to a membership system. Similar to how it works on this site when you join:

  • Kasia Swiderska
    • Support nomad

    Hello cornelius_butler,

    Can you please provide more information about your request? Which membership plugin are you using? Which plugin is used to handle mail lists subscriptions? Let us know so we can advise you on this matter.

    Your subject says "before joining" - but in your post, you are asking for "after they sign up". Advise which one is correct.

    kind regards,

    kind regards,

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